40

Crystallization of sphalerite and galena

Weight 200 gr
CHARACTERISTICS
Weight 200 gr
Size 75x60x30 mm
Reference 220807644
Mineral mineral species Galena
Mineral 2 mineral Sphalerite
Category Rocks and minerals
Group Crystallization
Country Country Bulgaria Bulgaria
Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
Click to zoom
Formula PbS] GALENA
Pb Lead Poor metal 86.6%
S Sulfur Other no metal 13.4%
100%
Galena is a mineral of the sulfide class, with a chemical formula PbS. It is known for its high density, metallic luster and gray color and usually forms cubic or octahedral crystals, but can also occur in massive or grained form. Galena is an important source of silver, giving it great economic value. It is commonly found in hydrothermal veins and sedimentary deposits. Due to its Pb content, handling of galena must be done with care to avoid any toxic exposure.
Formula ZnS] SPHALERITE
Zn Zinc Poor metal 64.06%
S Sulfur Other no metal 33.06%
Fe Iron Transition metal 2.88%
100%
Sphalerite is a mineral that belongs to the class of sulphides, more precisely, it is a zinc sulphide, with the chemical formula ZnS. It is mainly recognized as the most important source of zinc. Sphalerite typically occurs as cubic, octahedral, or dodecahedral crystals, but can also take the form of granular or compact masses. Its color varies from brown to black, although it can also be yellow, green or colorless. Its hardness on the Mohs scale is 3.5 to 4, which makes it relatively soft. Sphalerite is also notable for its high optical dispersion, greater than that of diamond, which gives rise to remarkable brilliance when cut into a gem.

Shipping time
Your orders are usually shipped the day of the order and at the latest after 2 working days.

Delivery delay
Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.

Returns and Refund
Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.

Payment methods


Paypal

Visa

Mastercard

Amex

Chèque

Virement