I received the mineral exactly as pictured. It's not an expensive mineral, but it's very beautiful. Thank you for the prompt shipping and excellent service. I highly recommend this shop😉❤️
China
Bournonite Crystal – Cogwheel Twin – China
SKU · ne053
$150.00
Free worldwide shipping over $38
This exceptional bournonite specimen from China features the characteristic “cogwheel” twinning that gives the mineral its nickname. The sharp, metallic crystals have a bright luster and are set on a contrasting matrix, making this a high-quality and aesthetically pleasing collector’s piece.
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Authenticity guaranteed
Hand-examined + numbered
Worldwide shipping
Insured tracked delivery
Display-ready
Acrylic base included
14-day return
No-questions return window
Specimen details
| Mineral | Bournonite |
|---|---|
| Locality | China |
| Crystal system | Orthorhombic |
| Chemical formula | PbCuSbS3 |
| Dimensions | 4.3 cm × 3.0 cm × 3.0 cm |
| Weight | 85 g |
| Color | Metallic |
| Size | Miniature (up to 2 inches / up to 5 cm) |
| Species | None |
| Condition | No damage on display faces |
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About this specimen
Uncover the allure of the Bournonite Crystal, a striking metallic sulfide specimen originating from China. This rare old stock gem is a must-have for collectors, offering a unique glimpse into geological beauty. Its captivating sheen and distinct formation make it an exceptional addition to any mineral collection.
Bournonite (PbCuSbS3) crystallizes in the orthorhombic system and is well-known for its characteristic “cogwheel” twinning, which is prominently displayed in this specimen. With a Mohs hardness of 2.5 to 3, it exhibits a bright metallic luster that reflects light beautifully across its sharp, well-defined crystals. The deep lead-gray to steel-blue coloration contrasts strikingly against the matrix, enhancing its visual appeal and making it a standout display piece.
This specimen hails from a notable locality in China, a region recognized for yielding fine bournonite crystals sought after by mineral enthusiasts worldwide. Its provenance adds to its collectible value, as Chinese bournonite specimens with such clarity and twinning are relatively uncommon.
Collectors will appreciate not only the rarity but also the aesthetic quality of this piece, which combines scientific interest with striking form. Due to its moderate softness, it is advisable to handle the specimen with care and avoid exposure to moisture or harsh chemicals to preserve its natural luster.
About Bournonite
Bournonite is a sulfosalt mineral recognized among collectors for its crystal form and distribution, with notable Chinese occurrences.
About China
China — dominant modern source for collector-grade specimens since the 1990s.
Frequently asked questions
Will I receive the exact specimen shown?
Yes. Every specimen is a single, one-of-a-kind piece, and the photographs show the exact item you will receive — never a stock photo.
Is this Bournonite natural?
Yes — specimens like this form naturally. As is standard in the trade, some pieces are gently cleaned or trimmed; we photograph the actual specimen and describe its origin and condition conservatively.
How is it packed and shipped?
Orders ship worldwide with fully insured, tracked delivery, carefully packed to protect fragile crystals. A display base is included.
Can I return it?
Yes — there is a 14-day return window.
What collectors say
★★★★★4.98· Verified reviewsThe mineral I received was exactly as pictured. It's not flashy, but it's a QR code fluorite that I've always wanted, and it's very beautiful. I love it!🥰
fluorita muy hermosa de gran tamaño, vendedora muy atenta siempre en comunicacion, el envio llego antes de la fecha programada, empacado con mucho cuidado, gracias
Very fine Sheelite of high quality and weight. Lovely with rich orange color. Packaged well and beautiful with stand included. Thank you- wonderful seller - great shop!!! Hugely recommended.
Absolutely stunning specimen. Packaged well! Thank you for including a free stand as well it’s much appreciated! Took a little while to ship out but it’s all good!! Thank you so much. I love it!
Beautiful authentic stone. Very fast shipping. Excellent 👍
Lovely piece from a like seller with great communication. Indian quartz, a charming cluster. Very pleased
Reçu très rapidement. Très beaux cristaux.
Clear, in perfect condition, which ia rare by itself, and here also location makes it a real collection best tier item. Thank you 🥹
Another stunning mineral from Maggie. It has a CHARACTER which is not so often to get. I'm in love with every single piece from Maggie and this one is no exception.
It's FENOMENAL. I'm so happy I decided to buy it. Cristals are in perfecf shape, big... I'm speachless. I think it's absolutely one of my best specimens. Thank you!
I'm obsessed with this fluorite. It's like the universe frozen in the box... Amazing. Can't stop looking at it 🥰
I have other wanadynites but this one is my favourite. Cristals itslef are small, but the overall composition is georgous 😍
Beautiful. Secured perfectly, so all these little needles can now feed my eyes 🥰
Perfect! On of my favourites on pink-purple shelf from now on 🥰
Absolutely beautiful. I thought it would be smaller, so nice surprise 😇
Absolutely stunning, authentic, beautiful fluorite. Shipping was very fast and stones protected perfectly. Totally recommend 🥰
Absolutely stunning, authentic, beautiful fluorite. Shipping was very fast and stones protected perfectly. Totally recommend 🥰
Received item just as described. Great seller and highly recommended!
Customer service was great 👍. The crystal looks just as pictured.
Bournonite Crystal – Cogwheel Twin – China
$150.00