I received six rocks in my purchase order all as expected, and I will use mineral box again
Yaogangxian Mine, China
Cassiterite and Quartz Cluster, Yaogangxian Mine, China
SKU · oe290
$290.00
Free worldwide shipping over $38
A single water-clear quartz point rises like a blade from a bank of near-black cassiterite, and the contrast does all the work: glassy transparency above, dense sub-metallic dark below. 7.6 × 5.8 × 6.9 cm, 510 g.
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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 | Cassiterite |
|---|---|
| Locality | Yaogangxian Mine, China |
| Crystal system | Tetragonal |
| Chemical formula | SnO2 |
| Dimensions | 7.6 cm × 5.8 cm × 6.9 cm |
| Weight | 510 g |
| Color | Metallic |
| Size | Small Cabinet (2–4 inches / 5–10 cm) |
| Species | Cassiterite |
| Condition | No damage on display faces |
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About this specimen
A single water-clear quartz point rises like a blade from a bank of near-black cassiterite, and the contrast does all the work: glassy transparency above, dense sub-metallic dark below. The cassiterite is deeply striated down its length, catching light in fine parallel lines across broad cleaved faces, with a second grey-black mass shouldering in from the left. A few smaller quartz terminations peek out where the two minerals meet.
Cassiterite is tin oxide, SnO2, and the reason this piece feels wrong in the hand is its specific gravity of about 7 — 510 g packed into a piece you can close one hand around. Yaogangxian in Hunan is best known for fluorite, but it is fundamentally a tungsten-tin deposit, and pieces where the ore mineral is the show rather than the afterthought are the ones tin collectors chase.
The specimen measures 7.6 × 5.8 × 6.9 cm and weighs 510 g, standing upright on its own broken base with no stand supplied. The specimen in the photographs is the one that will be packed for you.
About Cassiterite
Cassiterite is an oxide mineral prized by collectors for its exceptional color range, with several world-class Chinese localities.
About Yaogangxian Mine
Yaogangxian tungsten mine, Hunan, China — premier modern source of collector-grade fluorite with quartz overgrowths and purple windows.
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 Cassiterite 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
★★★★★4.97· Verified reviewsEverything was good with my order I will buy from them again in the future
I am very pleased with the rock specimen. It was just like described.
The fluorite is absolutely beautiful! It was packaged very carefully, and the seller communicates quickly. I highly recommend buying minerals from this shop😀
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😉❤️
The 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 😇
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