Armstrongite is a light to dark-brown colored mineral which occurs in Mongolia and is named after Neil Armstrong, an American astronaut.
Hardness 4.5 on the Mohs scale.
YOU ARE READING
The Complete Mineralogical Encyclopædia
Non-FictionThis is an encyclopedia on Rocks, Minerals and Fossils, providing a lot of useful information as well as *𝕊𝕖𝕝𝕗-𝕕𝕣𝕒𝕨𝕟 𝕡𝕚𝕔𝕥𝕦𝕣𝕖𝕤 𝕠𝕗 𝕖𝕒𝕔𝕙 𝕤𝕡𝕖𝕔𝕚𝕖𝕤; *𝔻𝕖𝕥𝕒𝕚𝕝𝕖𝕕 𝔻𝕖𝕤𝕣𝕚𝕡𝕥𝕚𝕠𝕟𝕤; *𝕌𝕡 𝕥𝕠 𝟝𝟘𝟘 𝕊𝕡𝕖𝕔𝕚𝕖𝕤 �...
ᴀʀᴍꜱᴛʀᴏɴɢɪᴛᴇ
Armstrongite is a light to dark-brown colored mineral which occurs in Mongolia and is named after Neil Armstrong, an American astronaut.
Hardness 4.5 on the Mohs scale.