AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from California > Opal pseudomorphs after Serandite |
![]() |
![]() |
DESCRIPTION: | No. 40904 |
Mineral: | Opal pseudomorphs after Serandite |
Locality: | Dallas Gem Mine, San Benito County, California |
Description: | Brown opal (amorphous silica) pseudomorphs after prismatic serandite crystals up to 2.5 mm long exposed in white natrolite matrix with black neptunite. See Mineralogical Record v.8 #6, page 450 for a description of this occurrence. Ex. C. Cook collection. |
Overall Size: | 5x3.5x2.5 cm |
Crystals: | 1-2.5 mm |
Archived: | 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.