#phonolite

[galacticjoelle]

God I wish lesbians were real 💔

[thelostcanyon]

Devils Tower, a butte composed of igneous phonolite porphyry rising 867 feet from base to summit, Crook County, Wyoming.

[backside-into-the-heavenly]

Devil’s Tower Wyoming USA

The formation is composed of phonolite porphyry, a type of igneous rock, and was created through volcanic activity. The exact process of its formation is still debated, but it is widely believed that it was formed by the intrusion of magma into or between other rock formations and then cooled and solidified.

#devilstower #wyominglife #usa #gillettewyoming #bighornmountains #wyoming #wondersofnature #nature #naturephotography #photography #naturelovers #landscape #wanderlust #landscapephotography #travel #world #photooftheday #amazingnature #wondersoftheworld #explore #flag #naturelover #travelphotography #travelgram #sky #captures #beautiful #artofvisuals

[contremineur]

Vintage postcard of the Wolf Rock lighthouse, Cornwall

The fragile pencil of Wolf’s Rock tapering to a hostile sky, the empty miles of restless ocean...

in S.H. Burton, The coasts of Cornwall (Werner Laurie 1955)

Situated between Cornwall and the Isles of Scilly, the Wolf Rock is a small plug of phonolitic lava formed during the early Cretaceous period. Fissures in the rock are said to produce a howling sound in gales, hence the name.

The current lighthouse is the fourth structure to have stood on the rock – the third was a conical marker of cast iron and concrete rubble, completed in 1848 and still visible on the jetty. Forty-one metres (135 ft) in height, the tower is constructed from 3296 tons of dovetailed granite blocks prepared at Penzance. It took eight years to build, from 1861 to 1869, due to the treacherous weather conditions that can occur between the mainland and the Isles.

In February 1948 Wolf Rock became the first ocean rock lighthouse to be resupplied by helicopter. Three keepers had been on duty in the lighthouse for 101 days (the normal shift was 60 days) and due to constant stormy weather were running seriously low on supplies.

The light, which can be seen from Land's End by day and night, has a range of 23 nautical miles and was automated in 1988.

image and quotation via here, text abridged from there and from here

[koikeraha]

2024. Jan. 19th at 新宿ピットイン

新宿ピットインの水谷浩章2デイズの初日1/19のPhonolite に参加させていただきます。

先日のリハーサルでは私にとっては全て新曲でしたが、水谷さんの美しさと妖しさとコミカルさが交錯し、複雑なレイヤーがおり重なる難曲たちはどれも名曲で今回演奏できることがとても嬉しいです。いろいろな想いが溢れます。

むかしむかし、私が水谷浩章さんを知ったのは師匠である松風鉱一さんの『万華鏡』という素晴らしいアルバムでした。これまでPhonolite に参加されていた松風さんには遠くおよびませんが丁寧に演奏したいと思います。

皆様のお越しをお待ちしております！

ーーーーーー

水谷浩章 2DAYS ＠ 新宿 Pit Inn

2024年 1月19日（金）

　開場19:00 開演19:30

　19日＝￥3,850　20日＝￥3,300（共に、1ドリンク付）

　◎12/1(金) AM11時より、店頭予約、電話（03-3354-2024）、またはホームページの各公演日のチケット予約フォームから、予約（開場時優先入場）受付開始。

19日 phonolite

　水谷浩章(B,Comp,Arr)、太田朱美(Fl)、小林豊美(Fl)、竹野昌邦(Reeds)、小森慶子(Reeds)、松本 治(Tb)

　梶谷裕子(Vla)、平山織絵(Vc)、山田あずさ(Vib,Per)、市野元彦(G)、外山 明(Ds)

（

[butchharrydalton]

I will now recite the rocks in alphabetical order:

adamellite

amphibolite

andesite

anorthosite

anthracite

appinite

aphanite

arenite

argillite

arkose

basalt

basanite

blueschist 

biomicrite

biosparite

boundstone

breccia

carbonatite

cataclasite

chalk

chert

claystone

clinopyroxenite

coal

conglomerate 

coquina

dacite

diamictite

diatomite

diorite

dolomite 

dunite

eclogite

essexite

evaporite

flint

foidite

gabbro

gabbronorite

gneiss

gossan

granite

granodiorite 

granophyre

granulite

graywacke

gritstone

greensand

greenschist

harzburgite

hornblendite

hornfel

hyaloclastite

icelandite

ignimbrite

ijolite

itacolumite

jadeitite

jasperoid

jaspillite

kenyte

kimberlite

komatiite

lamproite

lamprophyre

larvikite

laterite

latite

lherzolite

lignite

limestone

litchfieldite

litharenite

llanite

luxullianite

mangerite

marble

marl

metapelite

metapsammite

migmatite

minette

monzodiorite

monzogranite

monzonite

mudstone

mylonite

nepheline syenite

nephelinite

norite

novaculite

obsidian

oil shale

oolite

pantellerite

pegmatite

peridotite

phonolite

picrite

porphyry

phyllite

pseudotachylite

pumice

pyrolite

pyroxenite

quartzarenite

quartzite

rhyolite

sandstone

schist

scoria

shale

siltstone

serpentinite

shonkinite

skarn

slate

suevite

soapstone

syenite

syenogranite

taconite

tephrite

teschenite

theralite

tholeiite

tonalite

trachyte

travertine

tuff

turbidite

urtite

variolite

wackestone

websterite

wehrlite

whiteschist

xenolith

[rh35211]

https://www.britannica.com/science/nepheline-syenite

What is nepheline syenite used for?

Nepheline syenite from Canada is used to replace feldspar in the manufacture of ceramic and glass products. The feldspar in nepheline syenite may be cryptoperthite or, rarely, a mixture of albite and microcline. Nepheline is sometimes wholly or partly replaced by sodalite or cancrinite.

Is nepheline syenite toxic?

Acute Toxicity Values: No acute toxicity data is available for product. No ecotoxicity data is available. This product is not expected to present an environmental hazard. Waste Disposal Method: Nepheline Syenite is not classified as a hazardous waste under US EPA RCRA regulations.

Does nepheline have cleavage?

Resembles feldspars but nepheline is uniaxial, lacks good cleavage and twinning, and has a low birefringence. Nepheline is softer than quartz and differs in optic sign. Nepheline occurs in alkali-rich, silicon poor igneous rocks (nepeline syenite, foidite and phonolite).

Is nepheline a rock or mineral?

feldspathoid mineral

Nepheline is an important feldspathoid mineral. It is white, grey or yellow in colour with a vitreous lustre and a poor cleavage. The name Nepheline comes from the Greek word nephele, which means “cloud,” because it becomes strongly clouded when put in strong acid. Nepheline only forms in silica-poor rocks.

[mousefluff]

ace rights, adakite, adamellite, andesite, alkali feldpsar granite, anorthosite, anthracite, amphibolite, aphanite, aplite, appinite, argilite, arkose, banded iron formation, basalt, basaltic trachyandesite, basanite, benmoreite, blairmorite, blue granite, blueschist, boninite, borolanite, breccia, calcarenite, calcflinta, carbonatite, cataclasite, chalk, charnockite, chert, claystone, coal, comendite, conglomerate, coquina, corsite, dacite, diabase, diamictite, diatomite, diorite, dolostone, dunite, eclogite, enderbite, epidosite, essexite, evaporite, felsite, flint, foidolite, gabbro, ganister, geyserite, gneiss, gossan, granite, granodiorite, granophyre, granulite, greenschist, greywacke, gritstone, harzburgite, hawaiite, hornblendite, hornfels, hyaloclastite, icelandite, ignimbrite, ijolite, itacolumite, jadeite, jasperoid, jaspillite, kenyte, kimberlite, komatiite, lamproite, lamprophyre, lapis lazuli, larvikite, laterite, latite, lherzolite, lignite, limestone, litchfieldite, llanite, luxullianite, mangerite, marble, marl, metapelite, metapsammite, migmatite, minette, monzogranite, monzonite, mudstone, mugearite, mylonite, nepheline syenite, nephelinite, norite, novaculite, obsidian, oil shale, oolite, pantellerite, pegmatite, peridotite, phonolite, phonotephrite, phosphorite, phyllite, picrite, pietersite, porphyry, pseudotachylite, pumice, pyrolite, pyroxenite, quartz diorite, quartz monzonite, quartzite, quartzolite, rapakivi granite, rhomb porphyry, rhyodacite, rhyolite, rodingite, sandstone, schist, scoria, serpentinite, shale, shonkinite, shoshonite, siltstone, skarn, slate, soapstone, sovite, suevite, syenite, sylvinite, tachylite, taconite, talc carbonate, tectonite, tephriphonolite, tephrite, teschenite, theralite, tillite, tonalite, trachyandesite, tracybasalt, travertine, trachyte, troctolite, trondhjemite, tufa, tuff, turbidite, unakite, variolite, vogesite, wackestone, wad, websterite, wehrlite, whiteschist

[galacticjoelle]

My lesbian cottage core couple (one half orc water genasi and tiefling)

[adraelfineminerals]

Group of analcime crystals on matrix, very aesthetic. The crystals have great transparency, vitreous shine and white color. The specimen comes from the Richter quarry and has a triclinic crystal system and a trapezohedral shape. Delivered with a methacrylate box.

[gazeta24br]

O single “Átame” faz parte de seu novo disco que será lançado em outubro A música e a teatralidade sempre foram traços marcantes na cultura latina. Do samba ao tango, a performance está sempre presente. E é esse clima latino que acompanha Joana Castanheira, cantora de Florianópolis (SC), em “Átame”, seu primeiro single em espanhol. A música faz parte do repertório de seu novo disco, “Desapreço”, que será lançado no dia 18 de outubro nas plataformas de streaming. O single é uma edição Phonolite, com lançamento do selo Baila Records e distribuição da Ingrooves. Ouça: https://ffm.to/atame Assista o visualizer de Átame: https://youtu.be/DU8XROThrzY?si=7IvT6EiYnzFiK9zc Durante a fase de composição, Joana Castanheira conta que ao receber a música para colocar a letra sentiu uma influência de “Tuyo”, do Rodrigo Amarante, que se tornou trilha sonora de abertura da série “Narcos”, da Netflix. “Ainda que não fale espanhol, achei que ela tinha um clima latino e que cabia uma letra nesse idioma. Acho que Átame é a música mais forte e visceral do disco. Foi uma das primeiras a ser composta e foi a primeira a ser escolhida no repertório. Então acho que ela não se encaixa no disco, o disco que se encaixou nela.”, avalia Joana. A visceralidade presente em Átame vem alinhada à interpretação que a cantora entrega no single. Vinda de uma carreira teatral que iniciou ainda na infância, o teatro e a música são duas veias artísticas que estão sempre expostas na trajetória de Joana. “O teatro sempre andou de mãos dadas comigo e com o meu fazer artístico. Eu comecei no teatro quando comecei na música, ainda criança e, por muito tempo, achei que seguiria carreira somente no teatro musical, então ele realmente tem uma importância muito grande pra mim. Por esse motivo é que o teatro é um pilar tão importante do meu trabalho e esse também é o porquê de eu hoje me considerar intérprete.”, explica. Conheça Joana Castanheira O palco sempre chamou a atenção de Joana Castanheira. Desde a infância participou de corais e de musicais de teatro. Começou a chamar atenção da mídia devido o seu canal no YouTube, criado em 2014, em que criava versões de músicas, algumas canções trazem a participação de artistas como Dani Black, Pedro Viáfora (5 a Seco), Ana Vilela, Day Limns, entre outros. Em 2016, foi participante da quinta edição do programa The Voice Brasil, quando ganhou projeção nacional. Em carreira autoral, traz os discos “Perdão, Amor (eu errei)”, de 2022; “Aparador (Ao Vivo)”, de 2021; e “Para”, de 2019. A trajetória também conta com os EPs “À Mesa” (2021), “Volta (Ao Vivo)” (2021) e “Aparador De Saudades Que Ainda Não Existiram ou Porta-Retratos” (2020), que também virou um filme disponível no YouTube. Ficha técnica A faixa “Átame” é uma composição de João Peters, Joana Castanheira e Henrique Goulart. Participam os músicos Joana Castanheira (voz), João Peters (baixo), Riccieri Paludo (violoncelo), Derli Júnior (piano), Rafael Nogueira (bateria) e Arthur Boscato (violão). A direção musical é de João Peters, com captação de áudio, mixagem, edição e masterização de Renato Pimentel (The Magic Place Studio). O single é uma edição Phonolite, com lançamento do selo Baila Records e distribuição da Ingrooves. O visualizer conta com produção executiva de Luanda Wilk, direção de arte e fotografia por Tainá Bernard. O styling é de Agatha Tardi, com beauty de Jhonny Braz. O trabalho contou ainda com Eder Sousa (técnico de luz) e Fernando Andrade (assistência de vídeo). O design gráfico é de Janaína Moreira, com marketing digital por Dreamland. Acompanhe Joana Castanheira TikTok: https://www.tiktok.com/@joanaccastanheira Instagram: https://www.instagram.com/joanaccastanheira Twitter: https://twitter.com/joccastanheira YouTube: https://www.youtube.com/@joanaccastanheira

[jessebeckerms]

Weingut Salwey Spätburgunder Oberrotweiler Kirchberg GG Baden 2021

Volcanic rock, "clinkstone' (from the VDP website) = Phonolite. Superb open-knit aroma of red cherries and wood spices of cinnamon and clove. Judging by the nose alone this seems poised for superb bottle development. Bright, tight, juicy plate. the wine has an openness on the nose but shows its youth when tasted. Structured and destined to age beautifully. ****

[backside-into-the-heavenly]

Devil's Tower in Wyoming, USA is a rare natural wonder with an intriguing and mysterious backstory. The tower's commanding and distinctive appearance, formation, and personality make it a fascinating sight to behold. Nestled amidst the Black Hills near the town of Sundance, the rock mass stands 1,267 feet tall above the Belle Fourche River, grasslands, and ponderosa pine forests. It was designated as our country's first national monument by Theodore Roosevelt in 1906.

The origin of Devil's Tower has puzzled Native Americans and early explorers for many years. According to Native American legend, seven little girls were playing in the forest when they were pursued by giant bears. The girls prayed and jumped onto a boulder, which then started to grow and lifted them toward the sky. The rock eventually grew into the tower, with the cracks and columns on it attributed to the bears' failed attempts to climb it.

Devil's Tower is a popular destination for traditional rock climbers, with some columns featuring crevices up to 400 feet in length. Despite this, the tower holds immense cultural and spiritual significance to many Native American tribes, who still consider it a sacred site. To honor the tribes' cultural practices and rituals still performed there, climbing the monument is restricted during the month of June, which involves sun dances, vision quests, and prayer offerings that are significant parts of Devil's Tower's history.

Geologists have established that Devil's Tower was created by a volcano's cooling magma, resulting in the formation of distinct columns. The tower is unique in size and rock type, being composed of phonolite. These columns are among the tallest and widest found in this type of rock formation.

[contremineur]

Vintage postcard of the Wolf Rock lighthouse, Cornwall

The fragile pencil of Wolf’s Rock tapering to a hostile sky, the empty miles of restless ocean...

in S.H. Burton, The coasts of Cornwall (Werner Laurie 1955)

Situated between Cornwall and the Isles of Scilly, the Wolf Rock is a small plug of phonolitic lava formed during the early Cretaceous period. Fissures in the rock are said to produce a howling sound in gales, hence the name.

The current lighthouse is the fourth structure to have stood on the rock – the third was a conical marker of cast iron and concrete rubble, completed in 1848 and still visible on the jetty. Forty-one metres (135 ft) in height, the tower is constructed from 3296 tons of dovetailed granite blocks prepared at Penzance. It took eight years to build, from 1861 to 1869, due to the treacherous weather conditions that can occur between the mainland and the Isles.

In February 1948 Wolf Rock became the first ocean rock lighthouse to be resupplied by helicopter. Three keepers had been on duty in the lighthouse for 101 days (the normal shift was 60 days) and due to constant stormy weather were running seriously low on supplies.

The light, which can be seen from Land's End by day and night, has a range of 23 nautical miles and was automated in 1988.

image and quotation via here, text abridged from there and from here

[postambientlux]

BEST AMBIENT OF 2022

the 100 BEST AMBIENT ALBUMS of 2022 curated by @holsgr

#100 : Awe Kid - Body Logic

#99 : Dujat - Tertre

#98 : John Hayes - Beautifully Lost Mind

#97 : Zguba - Znój

#96 : Rubin Henkel - Restless

#95 : Saul Guanipa - Emanations

#94 : Wreath - Green Wall

#93 : Andrew Tasselmyer & Blurstem - Duets

#92 : Caldera - One Last Glimpse

#91 : Benny Bock - Vanishing Act

#90 : Polypores - Small Moves Ellie

#89 : Warmth - Pale Sun

#88 : Mindwarden - Timeless

#87 : Hugar - Rift

#86 : Daniel Herskedal - Out of the Fog

#85 : Fabio Orsi - Reverse Diverse

#84 : N Kramer - Altered Scenes and Slight Variations

#83 : Caterina Barbieri - Spirit Exit

#82 : Ethan Sherman - Indoor Vistas

#81 : Jonas Coltrup - At the Crest

#80 : Gregor Dys - riss

#79 : Kuedo - Infinite Window

#78 : Tegh & Adel Poursamadi - Ima ایما

#77 : Szun Waves - Earth Patterns

#76 : Sven Laux & Fione - Tomorrow Everything Could Be Different

#75 : Marc Codsi - The Silence Between the New World and the Aftermath

#74 : Adrian Copeland - If This Were My Body

#73 : Tapani Rinne & Teho Majamäki - On The Border

#72 : Jónsi, Sin Fang, Alex Somers, Kjartan Holm - Sounds of Fischer Vol. 1

#71 : bvdub & James Bernard - Departing In Descent

#70 : Andrew Heath & James Olsand - Once We Were All Here And Nowhere Else

#69 : K. Freund - Hunter on the Wing

#68 : Jean-Michel Blais - aubades

#67 : Kaitlyn Aurelia Smith & Emile Mosseri - I Could Be Your Dog / I Could Be Your Moon

#66 : Yair Elazar Glotman - Speculative Memories

#65 : Bill Seaman & Stephen Vitiello - The Other Forgotten Letters

#64 : Paolo Bellipanni - Persona

#63 : Marine Eyes - Chamomile

#62 : The Expanding Universe - One

#61 : Danny Lubin Laden - Notes To Rest

#60 : Harry Towell & Guy Gelem - Restful Spaces

#69 : We Dream of Eden - Garden Heart

#58 : Mischa Blanos - The Bald Soprano  

#57 : Ralph Heidel - Modern Life

#56 : Julia Gjertsen - Formations

#55 : C Duncan - Alluvium

#54 : Martin Roth - Mono No Aware

#53 : Logic Moon & Henrik Meierkord - Inseln

#52 : Nightports w/ Tom Herbert - Nightports w/ Tom Herbert

#51 : Channelers - Time, Space, and Thought

#50 : Jameson Nathan Jones - Somewhat the Same

#49 : Tomotsugu Nakamura - Nothing Left Behind

#48 : Fergus McCreadie - Forest Floor

#47 : Mathoms - The Woe Trumpets

#46 : Taylor Deupree - Harbor

#45 : Artur Maćkowiak - Secret Carnival

#44 : Francis Harris - Thresholds

#43 : Danny Mulhern - Singing Through Others

#42 : Pie Are Squared - The Whole World's a Window and I Can't See a Thing

#41 : Deniz Cuylan - Rings of Juniper

#40 : Cole Pulice - Scry

#39 : Alina HipHarp - Reflections

#38 : Zensō - The Secret Garden

#37 : Daniel Avery - Ultra Truth

#36 : Golden Brown - Luminous

#35 : Wojciech Rusin - Syphon

#34 : Blurstem & Elijah Bisbee - Geneva

#33 : Kasper Bjørke - Mother

#32 : Matt Ulery - Become Giant

#31 : Zuwe - SH40

#30 : IDRA & Hiroshi Ebina - Circle

#29 : Serpiente Negra Ensamble - Black Guzman

#28 : Monodrama - mndrmooaa

#27 : Tristan Eckerson - Going Home

#26 : Cucina Povera & Ben Vince - There I See Everything

#25 : Bill Seaman & Daniel Howe - Dispositions

#24 : Rival Consoles - Now Is

#23 : Andrew Wasylyk - Hearing the Water Before Seeing the Falls

#22 : Daigo Hanada - Satori

#21 : Gabríel Ólafs - Solon Islandus

#20 : Inhmost - Space and Awareness

#19 : Tom Skinner - Voices of Bishara

#18 : City Of Dawn - As the Universe, So the Soul

#17 : Steve Fors - it's nothing, but still

#16 : Scott Campbell - Quiet Rituals

#15 : Space Between Clouds - Space Between Clouds

#14 : Jasmine Myra - Horizons

#13 : Home Baker - Habits

#12 : Aftab Darvishi - A Thousand Butterflies

#11 : Angus MacRae - Vivarium

#10 : Luke Howard - All of Us

#9 : Toàn - Phonolite

#8 : Jason Van Wyk - Descendants

#7 : Krystian Shek - Suddenly

#6 : Tapani Rinne & Juha Mäki-Patola - Open

#5 : Andrew Heath - Quiet Noise

#4 : Alex Smalley & Lucia Adam - Patterns

#3 : Mike Lazarev - When You Are

#2 : Rachika Nayar - Heaven Come Crashing

#1 : Chad Mossholder - Lighghthouse

the 10 BEST AMBIENT EP's of 2022 curated by @holsgr​

#10 : Dear Gravity & We Dream Of Eden - Holocene

#9 : Matthew Halsall - The Temple Within

#8 : Antxnio Graz - LOADING//:fluids

#7 : Michael Griffiths - Une Chapelle à La Campagne

#6 : Portico Quartet - Next Stop

#5 : The June Rise - Birds

#4 : Heavy Cloud - Beyond the Last Beach House

#3 : Antarctic Wastelands - Mysteries

#2 : Erik Mowinckel - Everything Is An Island

#1 : Clams Casino & Jazztronik - Winter Flower Reimagined ​

HONORABLE MENTIONS

Klaus Schulze - Deus Arrakis

Mind Over MIDI - Offgrid

Carlos Niño & Friends - Extra Presence

Sam Prekop & John McEntire - Sons Of

zmi - Piano Diary

Billow Observatory - Stareside

Salamanda - ashbalkum

Whatever The Weather - Whatever The Weather

Kenneth James Gibson - Groundskeeping

Jóhann Jóhannsson & Jonas Colstrup - Blind Massage

Federico Mosconi - Air Sculptures

ILUITEQ - The Light Inside, The Dark Outside

Dag Rosenqvist - Lexika

Ian William Craig - Music for Magnesium_173

The Broken Cradle - The Burial of the Dead

Max Ananyev - Garden

Drape - Forage / Presence

Trio Ramberget - 24 Ways

Dronny Darko & G M Slater - Dissolving into Solitary Landscapes

Bugge Wesseltoft - Be Am

Sangam & Kid Smpl - Found Wings

Daou - Sanctuary

Panoram - Acrobatic Thoughts

Bill Laurance - Affinity

Ross Gentry - Apparitional

Lorenzo Montanà - Aural

Räven Musen - Peppermint Soldier

Esmam La Crowned - Nuclear City

Neuro... No Neuro - Faces & Fragments

Pat Jaffe & Aidan Filshie - Summit

Sweatson Klank - Postcards

Luca Forcucci - The Room Above

EABS - 2061

Dunam - From Sand to Glass

Herhums - Humming in Chaos

Elin Piel - Satsuma Sunday

Andrea Bellucci & Matteo Uggeri - The Soundtrack of Your Secrets

Fabio Orsi & Alessandra Guttagliere - Arcoiris

Jeremiah Chiu & Marta Sofia Honer - Recordings from the Åland Islands

TIBSLC - Hypertranslucent

Podel - Suburban Memory

Svarte Greiner - Devolving Trust

Suso Sáiz X Menhir - Just Before Silence

Araceae - Nothing Will Last

CHECK ALL THE AMBIENT ALBUMS SHARED THIS YEAR ON THE AMBIENT 2022 SPOTIFY PLAYLIST > LINK HERE

Experimental electronic & Ambient music blog made by Hermann Holsgr. linktr.ee/postambientlux 

[earthstory]

Roque de Agando

The island of La Gomera is covered in striking volcanic rock formations. La Gomera is one of the seven main islands of Spain’s Canary Islands. They are located in the Atlantic Ocean and were formed by the Canary hotspot, a mantle plume underlying the archipelago.

In the center of La Gomera, three impressive mountains called Los Roques rise above their surroundings. They are located within the Garajonay National Park which is a popular tourist destination. The Roque de Agando is the highest of these mountains and has a south face rising 220m above the ground. It was once a popular climbing spot, but since then the Roques became national monuments and climbing is now forbidden.

The Roques are so-called volcanic plugs. Volcanic plugs are a mass of solidified magma filling a volcanic pipe. The Roques are made of phonolite, a relatively uncommon volcanic rock type often associated with hotspot volcanism. Phonolite is a very hard type of rock and very resistant to erosion in comparison to the surrounding softer rocks. This effect has left these impressive mountains rising tall above the island.

Xandi

Image Credit: https://bit.ly/2EaHKze Source: https://bit.ly/2S0P7gn