14hdcen ((CALCITE or GYPSUM?)), $10 MINIMUM BID, Arizona?, 9 x 7 x 4 cm, Cabinet | |
Here is a larger version of specimens I have listed previously. Still it is unknown. These larger crystals look like Calcite rather than Gypsum. Only a few have minor cleaves exposing the inside of the crystals. My guess is still Arizona as the locality. ex Wrights rock shop. |