|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Sphalerite var. Marmatite with Siderite
|Sphalerite var. Marmatite with Siderite
|Eagle Mine, Gilman, Eagle County, Colorado
|Double-sided specimen of lustrous black marmatite crystals, the iron-rich variety of the mineral sphalerite, to 3 mm on yellow-metallic pyrite with translucent brown flattened rhombohedral (disc-shaped) siderite crystals to 12 mm on front and rear. Ex. Morse collection
|For reference only
© AllMinerals/JohnBetts-FineMinerals All Rights Reserved
The minerals illustrated on this site are presented for reference purposes only. The owner of this site did not collect the minerals and collectors should not assume access is permitted to the property based on inclusion in this museum. Please contact the property owner to obtain legal permission before entering private property.