4.5mm California Tourmaline Round | 0.36ct | California USA | CT102
4.5mm California Tourmaline Round | 0.36ct | California USA | CT102
California tourmaline from the Himalaya Mine is genuinely rare, and this pale green example is a good reminder of just how varied that deposit's output can be - most collectors associate the mine with hot pinks and reds, so a local green is an unusual find worth noting. The pale green color is subtle and quiet, the kind of tone that works well as a delicate center stone where you want presence without dominance. Like most tourmaline from this deposit, it carries internal inclusions that are characteristic of the species and the mine - not a flaw so much as a record of how the crystal grew.
Tourmaline from the Himalaya Mine in San Diego County carries real provenance weight - this is one of the most historically significant gem deposits in North America, and California-origin material appeals to designers and collectors who care about sourcing stories. As a species, tourmaline offers a broad refractive index range and good brilliance in a round cut, and the hardness of 7 to 7.5 makes it a practical choice for most jewelry applications. One note for the bench: tourmaline can be sensitive to sudden thermal shock, so take care with torch work and avoid ultrasonics on included stones.
This stone is untreated. The pale green color is entirely natural, with no heat, irradiation, or any other enhancement applied. What you see is exactly what the mine produced.
DIMENSIONS
Size: 4.5mm
Weight: 0.36 ct
STONE DETAILS
Variety: California Tourmaline
Species: Tourmaline
Origin: California USA
Cut: Round
Treatment: None
Hardness: 7 – 7.5 Mohs
RI: 1.614 – 1.666
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