Nadine, Hunter of Rocks 💎
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nadwgab.bsky.social
Nadine, Hunter of Rocks 💎
@nadwgab.bsky.social
Geologist | Mineralogy Curator @ the Natural History Museum, London | Creator of #365Minerals | Views are my own | She/Her

Posts about: #minerals #museums #geology #fossils #science #nature

Geology memes: #GeologistProblems

🐘 mas.to/@NadWGab
315 of #365Minerals 🧪⚒️

Picromerite:
- A hydrous sulphate mineral
- Forms in bedded salt deposits in the ocean and as a sublimate in fumaroles
- Its name comes from the Greek words "πικρός/pikros" (bitter) and "μέρος/meros" (part) because it contains magnesium #minerals
November 11, 2025 at 12:41 PM
Reposted by Nadine, Hunter of Rocks 💎
314 of #365Minerals 🧪⚒️

Riebeckite:
- An amphibole group mineral
- Forms in some volcanic rocks and schists
- Blue asbestos (crocidolite) is fibrous riebeckite
- Named after Emil Riebeck (1853-1885), mineralogist and explorer #minerals #MineralMonday
November 10, 2025 at 10:43 AM
314 of #365Minerals 🧪⚒️

Riebeckite:
- An amphibole group mineral
- Forms in some volcanic rocks and schists
- Blue asbestos (crocidolite) is fibrous riebeckite
- Named after Emil Riebeck (1853-1885), mineralogist and explorer #minerals #MineralMonday
November 10, 2025 at 10:43 AM
Reposted by Nadine, Hunter of Rocks 💎
313 of #365Minerals 🧪⚒️

Alunite:
- A sulphate mineral
- A source of aluminium and potassium
- Forms when acid solutions alter potassium-rich volcanic rocks
- Its name comes from the Latin word "alunit" (alum) #minerals
November 9, 2025 at 10:28 AM
313 of #365Minerals 🧪⚒️

Alunite:
- A sulphate mineral
- A source of aluminium and potassium
- Forms when acid solutions alter potassium-rich volcanic rocks
- Its name comes from the Latin word "alunit" (alum) #minerals
November 9, 2025 at 10:28 AM
Reposted by Nadine, Hunter of Rocks 💎
312 of #365Minerals 🧪💎

Phenakite:
- A silicate mineral
- Forms in pegmatite veins and mica-schists
- Sometimes used as a gemstone
- Its name comes from the Greek word "φέναξ/phénax" (deceiver) because it looks like quartz #minerals
November 8, 2025 at 1:05 PM
312 of #365Minerals 🧪💎

Phenakite:
- A silicate mineral
- Forms in pegmatite veins and mica-schists
- Sometimes used as a gemstone
- Its name comes from the Greek word "φέναξ/phénax" (deceiver) because it looks like quartz #minerals
November 8, 2025 at 1:05 PM
Reposted by Nadine, Hunter of Rocks 💎
311 of #365Minerals 🧪⚒️

Benstonite:
- A carbonate mineral containing barium
- Fluoresces red under UV and x-rays
- Forms in baryte deposits and in some carbonatites
- Named after Orlando J. Benston (1901-1966) an American ore metallurgist who collected the first specimens #minerals
November 7, 2025 at 10:02 AM
November 7, 2025 at 8:11 PM
311 of #365Minerals 🧪⚒️

Benstonite:
- A carbonate mineral containing barium
- Fluoresces red under UV and x-rays
- Forms in baryte deposits and in some carbonatites
- Named after Orlando J. Benston (1901-1966) an American ore metallurgist who collected the first specimens #minerals
November 7, 2025 at 10:02 AM
Reposted by Nadine, Hunter of Rocks 💎
310 of #365Minerals 🧪⚒️

Pyrolusite:
- Mineral form of manganese dioxide
- A very common manganese mineral
- An important manganese ore
- Used as a pigment in ancient cave paintings
- Forms in oxidised manganese-bearing hydrothermal deposits #minerals
November 6, 2025 at 10:14 AM
310 of #365Minerals 🧪⚒️

Pyrolusite:
- Mineral form of manganese dioxide
- A very common manganese mineral
- An important manganese ore
- Used as a pigment in ancient cave paintings
- Forms in oxidised manganese-bearing hydrothermal deposits #minerals
November 6, 2025 at 10:14 AM
Reposted by Nadine, Hunter of Rocks 💎
309 of #365Minerals 🧪⚒️

Ruby:
- The red/pink variety of corundum
- Its colour is caused by chromium
- Heat treatment can improve its colour
- 9 on the Mohs hardness scale
- Its name comes from the Latin word "ruber" (red) #minerals
November 5, 2025 at 10:41 AM
309 of #365Minerals 🧪⚒️

Ruby:
- The red/pink variety of corundum
- Its colour is caused by chromium
- Heat treatment can improve its colour
- 9 on the Mohs hardness scale
- Its name comes from the Latin word "ruber" (red) #minerals
November 5, 2025 at 10:41 AM
Reposted by Nadine, Hunter of Rocks 💎
308 of #365Minerals 🧪⚒️

Diopside:
- Pyroxene mineral
- Forms in ultramafic igneous rocks, xenoliths & metamorphic rocks
- Can turn into chrysotile when hydrothermally altered
- Name comes from the Greek "dis" (twice) & "òpsè" (face) because its vertical prism can be orientated in two ways #minerals
November 4, 2025 at 11:07 AM