Quartz (Japan-law twins) with Calcite

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Quartz (Japan-law twins) with calcite, 7.9 cm, from the San Pedro mine, New Placers District, Santa Fe County, New Mexico; collected with Jerry Simmons. Japan-laws are common from San Pedro, but this is one of the largest ones we found. Philip and Jerry Simmons collection; Philip Simmons and Erin Delventhal photo.

Product details

SizeSmall Cabinet
Dimensions7.9 cm
Added on02/13/2026
Publications
  • Mineralogical Record Self Collected Minerals page 335

Learn more

Calcite
Mineral guide
Learn about Calcite
diverse shapes, colors, and optical quirks; widely available yet scarce elite pieces from Elmwood and Charcas drive collecting value and display.
Regional guide
Calcite from San Pedro Mine
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