When Rock Classification was hard…

KRIEHUBER_1832_Friedrich_MohsTalc – Gypsum – Calcite – Fluorite – Apatite – Feldspar – Quartz – Topaz – Corundum – Diamond –  “Mohs Scale of Mineral Hardness ” should be familiar to rock-hounds and earth-science students alike […]

This entry was posted in General Science, Geology. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s