Calcite var. Hungary- Pilisjászfalu, collected by Zoltán Urbán in 2019, bought it, and added to my collection in the same year. It begun to dissolve back, that's why it's dull surface, Mt. Pilis is famous here from it's karst cave system, it's stalactites mainly from this calcite.

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Annamari

INFJ

Virgo

☢️Andersonite☢️

Rare, water soluable uranium ore. This time my specimen is incredibly small, so had to take a macro, probably the rarest mineral currently in my collection. It's from Recsk, Hungary

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Luke

INFP

Aries

Any idea? Non magnetic. Found in rock pool. On abandoned island.

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Annamari

2mo

INFJ

Virgo

Rutile

Titanium-dioxide, the most common natural form of it. It's properties very useful for manufacture of certain optical elements (polarization optics). Rutile is common accessory mineral both in igneous and metamorpic rocks this type of the crystals is actually common in other crystals (quartz for... read more

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Annamari

2mo

INFJ

Virgo

The Mohs scale

For the better understanding

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Manahil

3mo

ENTP

Scorpio

What's your favourite rock and why?

Also, what did the emrald say to the graphite? You rock! I've had a weird obsession with Obsidian since I saw that one guys on YouTube make spears and arrowheads out of Obsidian with... Obsidian. Honorary mention to Amber, it's not a rock but it's so effing cool.