Description: Schorl, also known as black tourmaline, in quartz and mica matrix, one stone with garnet inclusions. Collected at the Oceanview Mine in Pala, California. Rough lot of 5 stones for tumbling, cabbing, lapidary. Dimensions 1 lb, 4 0z, Stones range from 1" to 3" Specimens are untreated, dry, and photographed without enhancements to reveal their authentic state. As a fellow collector, I respect your need to see stones as realistically as possible.* * If you wish to see more photos or have questions about inclusions, defects, faceting potential, etc., please message me before bidding. I endeavor to respond to all inquiries within 12-24 hours.About SchorlHide* Formula:NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)Colour:Bluish-black to black, sometimes brownish-black, rarely greenish-black.Lustre:Vitreous, ResinousHardness:7Specific Gravity:3.18 - 3.22Crystal System:TrigonalMember of:Tourmaline GroupName:The early history of the mineral schorl shows that the name "Schorl" was in use prior to the year 1400 (AD) because a village known today as Zschorlau (in Saxony, Germany) was then named "Schorl" (or minor variants of this name). This village had a nearby tin mine where, in addition to cassiterite, a lot of black tourmaline was found. First mentioned by Ulrich Rülein von Calw 1505. The first relatively detailed description of schorl with the name "schürl" and its occurrence (various tin mines in the Saxony Ore Mountains) was written by Johannes Mathesius (1504-1565) in 1562 under the title "Sarepta oder Bergpostill". Up to about 1600, additional names used in the German language were "Schurel", "Schörle", and "Schurl". From the 18th century on, the name "Schörl" was mainly used in the German-speaking area. In English, the names "shorl" and "shirl" were used in the 18th century for schorl. In the 19th century the names "common schorl", "schörl", "schorl" and "iron tourmaline" were used in the Anglo-Saxon area (Ertl, 2006). Dimorph of:Luinaite-(OH) * Reference: Mindat.com
Price: 5.98 USD
Location: Carlsbad, California
End Time: 2024-12-28T05:26:41.000Z
Shipping Cost: 8.98 USD
Product Images
Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Transparency: Opaque
Gemstone Color: Black
Gemstone Type: Tourmaline
Number of Pieces: 6
Cut Grade: Very Good
Item Length: 21.7 mm
Item Depth: 11.1 mm
Gemstone Creation: Natural
Gemstone Treatment: Not Enhanced
Gemstone Form: Rough
Gemstone Clarity Grade: Slightly Included
Country/Region of Manufacture: United States
Country of Origin: United States
Item Width: 15.9 mm
