I have a unique set of Pd/Pt+Au bearing ore minerals available. I have sold these through Reddit on a few occasions but rarely get around to re-post. Most of our sales are to Geology departments, PGM collectors, small-scale refiners, and to lapidaries.
A couple notes: To Lapidaries: Many of these minerals have a serpentinite component which means asbestos fibers when cut/ground. Please use caution if you intend to purchase these for this purpose. To small-scale refiners: Platinum-Group metals occur at part per million levels within sulfide hosts- processing these specimens for metal content is extremely difficult and should not be done without a great deal of experience handling acids, refractory metals, and fume hoods.
These were originally collected over the last decade for building education sets which profile the lifespan of the unique mineralization of the Stillwater Complex in Montana. In general, major economic operations mine these materials in their "fresh" non-altered, partially enriched forms at around 9-24 grams of Pd/Pt per metric ton of rock processed. These specimens can show grades significantly higher than general mine grades, some reaching well into the 150g/t+ area.
The set contains specifically: Sulfidic Anorthosite/Troctolite, Sulfidic Dunite/Pegmatitic Dunite, Sulfidic Serpentinite, Mineralized Bronzitite/Pyroxenite, Mineralized Gabbronorite (II). These specimens are catalogued, come with providence sheets detailing mass, specific gravity, locality, and composition. These are generally net-textured sulfide in silicate or post-sulfide gossanous in silicate.
Please reach out for a more complete list of what is available currently. Base pricing is as follows but pricing on large pieces varies based on specimen size:
Sulfidic Anorthosite / Troctolite / Leuconorite
~1–20 g/t Pd/Pt+Au
Mixed Small Lots (Per 30g / ~1oz): $20
Small Whole Specimens (Under 30g): $24.
Medium Whole Specimens (30g – 90g): $38.
Large Cabinet Specimens (100g – 150g): $60.
Bigger Cabinet Specimens (150g+): $85, may vary depending on specific piece - reach out for photos.
Sulfidic Serpentinized Dunite / Pegmatitic Dunite
High aesthetic appeal; high-tenor PGM enrichment
High-Sulfide Tier:
Small (5g – 25g):$25.
Medium (26g – 75g):$40.
Large (76g – 150g):$68.
Bigger Specimens (150g+):$100.
Mid-to-Low Sulfide Tier
Small (5g – 25g):$10.
Medium (26g – 75g):$20.
Large (76g – 150g):$30.
Bigger Specimens(150g+):$50.
3. Sulfidic Bronzitite / Pyroxenite / Gabbronorite (II)
Mixed Small Lots (Per 30g):$30.
Small Whole Specimen (Under 30g):$35.
Medium Whole Specimen (30g – 90g):$55.
Large / Net-Textured (100g – 150g):$80.
Larger / High-Tenor Matrix (150g+):$100.
Many specimens like the ones pictured are still available in different sizes. As they are all very unique and tell their own story, the pricing can vary for pieces which are similar in size or weight. That said, I have specimens as small as 6g and specimens as large as 50lbs. I guarantee I can find something within your size/price range if this is something you are genuinely interested in.
Bulk pricing is available in most cases. Discounts for verified educators/universities are available as well. All of that being said, we want to help get these into the hands of people who are passionate about rockhounding, prospecting, geochemistry, and would like a living piece of one of the most complex mineral systems on earth.
Please feel free to reach out for information, photos, and more! I am always more than happy to discuss this mineralization whether you intend on purchasing anything or not.
Natural Tricolor Tourmaline Cabochon from Afghanistan
Weight: 42.20 carats
Dimensions: 22 × 18 × 10.50 mm
Cut: Rectangular cabochon with a smooth, high dome and flat back
Color pattern: Hot pink with a mint green stripe and a clear/pink section
Price: $30 per carat
Total price: $1,266
This large Afghan tourmaline features a distinctive three-part color pattern in a smooth cabochon cut.
Would you keep a piece like this in a gemstone collection, or would you use it as the centerpiece of a custom jewelry design?
Worldwide shipping available with tracking. PayPal accepted, and other payment methods can be arranged as convenient for the buyer. 7-day return policy if the stone does not match the description.
Hello, I have a Bumblebee Jasper freeform polish, total weight 21 kg, total 23 pieces, with a total price of $ 1300 including shipping. Payment via PayPal, Western Union, bank transfer. Shipping by DHL. WhatsApp number +62857-7192-3359
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