• Source: Adamantine spar

Adamantine spar is a silky brown variety of corundum. It has a hardness of 9 on the Mohs scale.




See also


Yogo sapphire




References

Kata Kunci Pencarian:

• Adamantine spar
• Adamantine
• Adamant
• List of minerals
• Lustre (mineralogy)
• Proustite
• Cerussite
• Cassiterite
• Namor
• Hercules (Marvel Comics)