Wurtzite / Sphalerite

Wurtzite (beta-ZnS) is found in Tanzania as a brown to bright red crystal and crystallizes in the hexagonal crystal system. On the other hand, Zinc blende (alpha-ZnS) or Sphalerite crystallizes cubically. In Tanzania both are called sphalerite.

Mererani is a fascinating and exceptionally diverse deposit in northeastern Tanzania at the foot of Mount Kilimanjaro. The deposit first gained international attention in the 1970s with the discovery of gemstone quality zoisite (Tanzanite), but further discoveries were to follow: for decades, in addition to Tanzanite, it has provided a variety of other minerals such as Tsavorite (Chrome Vanadium Grossular), Diopside, and Tremolite , Graphite, Alabandin, Wurtzite, etc. as the world's best crystals. The approximately 16 square kilometer discovery area is protected by a four-meter-high video-monitored wall and is guarded around the clock by armed guards. As a foreigner or local, it is virtually impossible to gain access.

Unless a different deadline is specified in the respective offer, the goods will be delivered domestically (Germany) within 3 - 5 days, and for deliveries abroad within 5 - 14 days (-20 to Australia/New Zealand).

Domestic deliveries (Germany)

• Orders from 0 to 2 kg = €5.95
• Orders over 2 kg to 5 kg = €7.00

We deliver free shipping for orders over €300.00.

Deliveries abroad

We calculate shipping costs abroad based on shipping weight:

• EU:
• up to 2 kg = 14,95 €
• over 2 kg up to 5 kg = 16,95 €
• Switzerland:
• up to 2 kg = 17,99 €
• over 2 kg up to 5 kg = 25,99 €
• Great Britain:
• up to 2 kg = 21,99 €
• over 2 kg up to 5 kg = 26,99 €
• Norway:
• up to 2 kg = 21,99 €
• over 2 kg up to 5 kg = 25,99 €
• Rest of Europe:
• up to 5 kg = 29,99 €
• US/Canada:
• up to 2 kg = 25,99 €
• over 2 kg up to 5 kg = 47,99 €
• Australia/New Zealand:
• up to 5 kg = 49,99 €
• Israel:
• up to 5 kg = 38,99 €
• Hongkong/Japan/Malaysia/Singapur/South Korea/United Arab Emirates:
• up to 5 kg = 46,99 €

We deliver free of charge abroad for orders over €500.00.

Accepted payment options

• Credit card
• Paypal
• paydirect
• by invoice
• Immediately / instant transfer
• Credit card (via Klarna)
• Amazon Pay
• Giropay
• Google Pay
• Apple Pay
• PayPal

Further details can be found in our shipping and payment conditions