6hhch.l ((HEULANDITE subgroup, MORDENITE, CALCITE)), $5 MINIMUM BID, Rock Creek, Stevenson, Skamania Co., Washington, 5.5 x 4 x 3.5 cm, Miniature | |
Reddish brown small lustrous Heulandite lining the vuggy matrix. Minor wispy hairlike white Mordenite crystals and Obelisk like Calcite crystals. Label also lists Smectite but Smectite comes in a variety of colors. It is actually Smectite group clay which is the most abundant clay within the Columbia Flood Basalts. So it is probably present |