Chlorastrolite (Greenstone) Half-breed, Yellow Datolite Pendant HBGYD-6


Chlorastrolite (Greenstone) Half-breed, Yellow Datolite Pendant HBGYD-6

Chlorastrolite is the “official state gem” of Michigan. It is a variety of the mineral pumpellyite and is found primarily as a small, green, rounded beach pebble, showing a turtleback pattern. Greenstones can still be found on Isle Royale and on some of the mine waste piles of the Copper Country, although it is a rare mineral.

Half-breed (Silver/Copper)
Half-breed usually refers to a natural mixture of white native silver & red copper. Unique to the Upper Peninsula of Michigan and corresponding areas of Canada across Lake Superior are masses of silver and copper referred to as : Ëœhalf-breeda'. These consist of crystalline intergrowths of these two metals, usually of a reniform habit except when found underground.

Datolite is a borosilicate mineral (hardness: 5-5.5). It is associated with native copper deposits in Michigan’s Keweenaw Peninsula. The characteristic ‘cauliflower’ shaped nodules range from 1-12 inches. The rarest colors are yellow, orange, green and red. White and pink are more common. At times specks of copper or silver appear with the datolite. This rare mineral is found in old waste rock piles and in Lake Superior.

Shipping & Policies

Shipping from United States

Processing time

1-2 business days

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment Options

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns and exchanges

Just contact me within: 3 days of delivery

Ship items back to me within: 7 days of delivery

I don't accept cancellations

But please contact me if you have any problems with your order.

The following items can't be returned or exchanged

Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

  • Custom or personalized orders
  • Perishable products (like food or flowers)
  • Digital downloads
  • Intimate items (for health/hygiene reasons)

Conditions of return

Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

Legal imprint