A mineral is an element or chemical compound that is normally crystalline and has been formed by geological processes.
A mineral is an element or chemical compound that is normally crystalline and has been formed by geological processes.
Questions tagged [minerals]
106 questions
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Why is streak different from color?
Many minerals have a streak that's surprisingly different from it's outward color. Why is this? What causes the optical properties to change if the mineral is powdered?
Thanks!
Neeraj Kulkarni
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Preservation of clay items
I have a general question which may sound naive: archeologists eg in Ancient Greece take a lot of information from preserved pottery they found. What physical attributes of ceramic items made of clay make them so likely to be preserved?
user132290
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Deadly minerals
I would like to go into mineral excavation as a hobby. What deters me is the fact there are quite a few deadly minerals/ores out there. My question is how likely is it there are those deadly ores in landlocked countries on Balkan peninsula? I know…
Raw N
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Please help me with the identification of this rock
What is it? It has what looks like white glitter its ugly dark brown and some orange heavy..
A.Carrillo
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Why does halite have a cubic crystal
Why does mineral halite has a cubic crystal ? Is this a result of the way by which sodium ions and chloride ions are held together ? And what is the relation between the cubic crystal of halite and its cleavage ?
Asmaa
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Is aqua aura quartz blue inside
How is aqua aura quartz made?
Is it a transparent non color quartz transformed into a blue quarts but only on the outside or on the inside too? What happens if I break an aqua aura crystal? Can the quartz be blue before the dying process begins? Do…
EPurpl3
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