The products are adorable, and the shop provides excellent service—they respond to messages quickly and handle any issues effectively.
Yaogangxian Mine, China
Large Bournonite Cogwheel Crystals, Yaogangxian Hunan
6.0 × 5.0 × 4.0 cm (2.36 × 1.97 × 1.57 in)
Longest edge: 60 mm (2.36 in)
SKU · GF829134607852
$1,157.00
Free worldwide shipping on orders of US$38 or more; below US$38: US$5 per parcel
Dimensions: 6.0 × 5.0 × 4.0 cm (2.36 × 1.97 × 1.57 in); longest edge 60 mm (2.36 in).
Large, lustrous steel-grey bournonite "cogwheel" crystals, from Yaogangxian, Hunan; with some damage.In stock
Free worldwide shipping on orders of US$38 or more; below US$38: US$5 per parcel. Standard import duties covered on eligible shipping routes. Shipping policy
Secure checkout
- Locality
- Yaogangxian Mine, China
- Dimensions
- 6.0 cm × 5.0 cm × 4.0 cm
Based in China · China warehouse · Shipping
Dispatch within 1–2 days. This is our general delivery estimate, not a destination guarantee; customs and carrier delays may apply.
US$38 = $38.00 · US$5 = $5.00
Shipping is free from US$38; below US$38, US$5 per parcel. Standard import duties are covered only on eligible routes. Local taxes and other applicable charges may be extra.
Shipping policyAuthenticity guaranteed
Hand-examined + numbered
Worldwide shipping
Insured tracked delivery
Specimen details
Review the product description
14-day return
No-questions return window
Specimen details
| Locality | Yaogangxian Mine, China |
|---|---|
| Dimensions | 6.0 cm × 5.0 cm × 4.0 cm |
Some details have not been recorded: Mineral, Weight.
About this specimen
Dimensions: 6.0 × 5.0 × 4.0 cm (2.36 × 1.97 × 1.57 in); longest edge 60 mm (2.36 in).
Bournonite from Yaogangxian, Yizhang, Chenzhou, Hunan: a large, chunky group of lustrous steel-grey bournonite crystals with the striated, cogwheel-like twinning collectors prize. Please note: some damage, which is visible in the photos. Bournonite contains lead. The photos are still frames taken from the video of this exact specimen.
Minerals: Bournonite
Locality: Yaogangxian, Hunan, China
Estimated weight: about 348 g / 12.28 oz
Dimensions and the weight are estimated from the video (specimen shown in hand), not measured.
The photographs show the exact specimen you will receive.
SKU: GF829134607852
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.
How is it packed and shipped?
Orders ship worldwide with fully insured, tracked delivery, carefully packed to protect fragile crystals.
Can I return it?
Yes — there is a 14-day return window.
What collectors say
★★★★★4.98· Website & Etsy reviewsThe products are adorable, and the shop provides excellent service—they respond to messages quickly and handle any issues effectively.
The products are adorable, and the shop provides excellent service—they respond to messages quickly and handle any issues effectively.
The products are adorable, and the shop provides excellent service—they respond to messages quickly and handle any issues effectively.
The products are adorable, and the shop provides excellent service—they respond to messages quickly and handle any issues effectively.
This Black Cassiterite is so beautiful! I love this mineral. Thank you very much!
A very unique quartz. A fine mineral. A very nice piece for my collection. Shipped safely and quickly.
A very nice piece for my collection. Shipped safely and quickly.
This is a good addition to my collection. It was well packaged and shipped quickly. I am happy with my purchase.
I received my package all beat up and was like "oh-no!" but because they did a great job packing it, so no damage at all! I am so happy with my purchase. I highly recommend this seller to you.
This Argentinian Quartz is so beautiful! I love it. Thank you very much!
Everything was beautiful. Thank you so much! I would love to purchase from you again.
At first I thought I didn't get it, then I found it! It's beautiful and I love it! Thank you so much.
Awesome crystal, as described, thanks!!
Amazing quality and great shipping.
Good tracking and a pretty piece
Its Nice and beautiful as described
Alles prima, schneller versand und wie beschrieben
Great piece for the cabinet
This is a stunning piece of grape agate for a fair price. It was beautifully packaged and arrived quickly. I am so happy with my purchases from this vendor and look forward to securing more items from them in the future. Highly recommend this shop.
Related specimens
Large Bournonite Cogwheel Crystals, Yaogangxian Hunan
$1,157.00