Lightnews — Scholar-powered news

MineralExpert.org @mexporg.bsky.social · 3d

Hey guys, just curious what you think about names like "Pink Amethyst". In my opinion, #Amethyst should be violet/purple.

And we already have another 2 pink #Quartz varieties (rose quartz and pink quartz), to create enough confusion.

"Pink amethyst" geode from Pehuenches, Argentina.

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MineralExpert.org @mexporg.bsky.social · 5d

Perfect Alpine #Fluorite octahedron on matrix from Planggenstock, Switzerland.

#minerals #crystals #mineralcollecting #mineralexpert #rockhounding #mineralogy

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MineralExpert.org @mexporg.bsky.social · 6d

Rare primary #Malachite crystals on pale blue #Chrysocolla from DR Congo.

#minerals #crystals #mineralcollecting #mineralexpert #rockhounding #mineralogy

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MineralExpert.org @mexporg.bsky.social · 9d

Tabular bright yellow-orange #Wulfenite crystals from Ahmad Abad Mine, Bafq Co., Yazd Province in Iran.

#minerals #crystals #mineralcollecting #mineralexpert #rockhounding #mineralogy

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MineralExpert.org @mexporg.bsky.social · 10d

You can use any you can find on mineralexpert.org with photographer Zbyněk Buřival or Albert Russ, just reference authors, please.

There is an extensive gallery (~10k photos from many authors), but most good pictures are inside articles (well over 1000).

MineralExpert.org

mineralexpert.org

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MineralExpert.org @mexporg.bsky.social · 10d

Hey guys, just a few ideas to improve:

1) Make the font a little larger
2) Add slightly more spacing between the lines
3) Break up the longer blocks of text
4) If possible, add some photos

This is hard to read.

Reach out if you need a help. Or photos - we do have a decent stock :)

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 10d

Twiddling your thumbs after already voting in #MinCup25?

Why don’t you take our annual Players Survey and help us improve for next year! www.mineralcup.org/2025/players...

Annual Mineral Cup Players Survey — Mineral Cup

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 11d

Blue #Kyanite with dark #Staurolite crystals from Chironico, Tessin, Switzerland.

Size 18 x 8 cm

#MinCup25 #MinCup #mineral #crystal #mineralogy

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MineralExpert.org @mexporg.bsky.social · 11d

#Kyanite is a super important mineral for metamorphic petrology. It is trichroic and has different hardness perpendicular and parallel to its long axis.

Check our comprehensive overview:

#MinCup25 #MinCup #mineral #crystal #mineralogy

mineralexpert.org/article/kyan...

Kyanite – Mineral Properties, Photos and Occurrence

The kyanite mineral is important for metamorphic petrology and also forms attractive mineral specimens or even gem quality crystals.

mineralexpert.org

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 11d

#MinCup25 Final: After a month of learning and laughter, we’re at the final match to determine the 2025 Mineral Cup Champion! We have blue blades of #kyanite up against optical magician #tugtupite.

Vote: www.mineralcup.org/2025/vote/r5...
Results: www.mineralcup.org/2025/results...

Vote in 2025 Final Match — Mineral Cup

Click here to vote in Kyanite vs Tugtupite Photo credits: John Sobolewski and Parent Géry

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 12d

#Calcite matrix obviously... eh

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MineralExpert.org @mexporg.bsky.social · 12d

Perfect #Dioptase crystals sitting on #Dalcite matrix from Tsumeb, Namibia.

Size 6 x 4 cm; Anton Watzl collection, Albert Russ photo

#MinCup25 #MinCup #mineral #crystal #mineralogy

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 12d

#MinCup25 Semifinals 2: Beautiful optics are in play for our last semifinal round between reindeer blood #tugtupite and desert queen #dioptase.

Vote: www.mineralcup.org/2025/vote/r4...
Results: www.mineralcup.org/2025/results...

Vote in Semifinal 2 — Mineral Cup

Click here to vote in Tugtupite vs Dioptase Photo credits: Parent Géry and Michael Roarke

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 12d

Nice #Hematite (var. Iron Rose/Eisenrose) with #Muscovite on #Adularia from the Mörchnerkar, Zillertal Alps, Austria.

Bramberg museum specimen

#MinCup25 #MinCup #mineral #crystal #mineralogy

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Semifinals 1: It's a battle of classic minerals for red #hematite vs blue #kyanite.

Vote: www.mineralcup.org/2025/vote/r4...
Results: www.mineralcup.org/2025/results...

Vote in Semifinal 1 — Mineral Cup

Click here to vote in Hematite vs Kyanite Photo credits: John Sobolewski

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 14d

Nice #Dioptase crystals on contrasting matrix from Kolwezi, DR Congo.

#MinCup25 #MinCup #mineral #crystal #mineralogy

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 14d

#MinCup25 QF4:
Team Green will win either way as desert emerald #Dioptase faces off against radioactive #Cuprosklodowskite!

Vote: www.mineralcup.org/2025/vote/r3...

Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 4 — Mineral Cup

Click here to vote in Dioptase vs Photo credits: Harold Moritz

www.mineralcup.org

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 15d

#MinCup25 Quarterfinals 3: It's a showdown between Team Green and Team Blue for #kosmochlor vs #kyanite.

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 3 — Mineral Cup

Click here to vote in Kosmochlor vs Kyanite Photo credits: Knut Eldjarn and Harold Moritz

www.mineralcup.org

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 16d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 17d

Monster size #Hematite (var. Iron Rose/Eisenrose) from the Mörchnerkar, Zillertal Alps, Austria.

Bramberg museum specimen

#MinCup25 #MinCup #mineral #mineralogy #crystal

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 17d

#MinCup25 Quarterfinal 1: Colourful phoenix #Haüyne goes against heavyweight industrial powerhouse #Hematite.

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 1 — Mineral Cup

Click here to vote in Haüyne vs Hematite Photo credits: Jean-François Ferrandon and John Sobolewski

www.mineralcup.org

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 18d

#MinCup25 Round 2 Match 8: Bright green radioactive #cuprosklodowskite is up against jet black phantom #mannardite.

Vote: www.mineralcup.org/2025/vote/r2...
Results: www.mineralcup.org/2025/results...

Vote in Round 2 Match 8 — Mineral Cup

Click here to vote in Cuprosklodowskite vs Mannardite Photo credits: Harold Moritz and Domenico Preite

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 19d

Fresh find of blue #Kyanite with minor dark #Staurolite in typical fine grained mica from Chironico, Tessin, Swizerland.

#MinCup25 #MinCup #mineral #crystal #mineralogy

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Reposted by MineralExpert.org

Mineral Cup #MinCup25 @mineralcup.bsky.social · 19d

#MinCup25 Round 2 Match 7: It's high-pressure #kyanite against deep-space #taenite.

Vote: www.mineralcup.org/2025/vote/r2...
Results: www.mineralcup.org/2025/results...

Vote in Round 2 Match 7 — Mineral Cup

Click here to vote in Kyanite vs Taenite Photo credits: Harold Moritz

www.mineralcup.org

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MineralExpert.org @mexporg.bsky.social · 19d

Dark green #Dioptase is a rare secondary copper silicate, renowned as a spectacularly colorful mineral. It is quite useless, but highly popular among mineral collectors.

#MinCup25 #MinCup #mineral #crystal #mineralogy

mineralexpert.org/article/diop...

Dioptase - the Perfect Green

Dioptase is a secondary copper silicate, occurring naturally as an oxidation product of hydrothermal copper deposits.

mineralexpert.org

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