Graham J. Borradaile & Mike Jackson

Petrography (1)

T. Njanko & A. Ne? de? lec & M. Kwe? kam & R. Siqueira (...)

Petrography (1)

Bj?rn Berge

Petrography (1)

GUIDE TO MINERALOGY & METALLIC LUSTER & Copper Pyrite Sphalerite & Hardness Streak Color & Other Properties Gravity & Specific Luster Gravity & Other Properties & Biotite Mica & Kaolinite Limonite & Native Sulfur (...)

Petrography (1)

Charles William McLaughlin, PhD & Marilyn Thompson, EdD & Dinah Zike (...)

Petrography (1)

Dinah Zike & Nicholas Hainen & Deborah Lillie (...)

Petrography (1)

G J H McCall

Petrography (1)

Rudolf Meyer & Josef K?hler & Axel Homburg (...)

Petrography (1)

Mark Gamba

Petrography (1)