Fe2+Fe23+O4 |
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QUARTZ on massive MAGNETITE (photographed in the field) Guye Mine Skarn Deposit |
ANDRADITE with MAGNETITE etched from CALCITE Guye Mine Skarn Deposit |
Grayish-green DIOPSIDE with red ANDRADITE and black MAGNETITE etched from CALCITE Guye Mine Skarn Deposit |
ALMANDINE garnet (gemmy pink to orange) and MAGNETITE (dark gray) sand. Clear sand grains are likely zircon crystals. Rialto Beach |