This natural Brown Cassiterite originates from Australia and its weight is about 5 carats. The measurements are 9.86mm x 6.05mm x 4.06mm (length x width x depth). The shape/cut-style of this Cassiterite is Octagon Facet. This 4.5ct Cassiterite gem is available to order and can be shipped anywhere in the world. Gemstone Certification can also be provided as an optional service.
Cassiterite is a tin oxide mineral, and is the primary ore for tin. In addition to its important industrial use, it has some interesting properties that make high quality crystals valuable as gemstones. Cassiterite is reasonably hard, with a rating on the Mohs scale of 6 to 7. It tends to be opaque though thin crystals can be translucent. Its chief virtue is its multiple crystal faces and outstanding luster. Many specimens are graded as having "adamantine" (diamond-like) or submetallic luster.
Cassiterite is one of the densest gem materials known. It also has a very high refractive index, higher than zircon, sphene and demantoid garnet.
I received the product in a very well packaged parcel with complete detail of what I ordered. I opened the envelope, then the bag and then the bubble wrap and then the item containing the stone. I was so delighted at the color, the cut , the clean clarity and the sparkle of my Ametrine, love at first sight. Cant wait to get it set into a ring with some Citrine and Amethyst. Thanks so much
I have never had to return anything, If I am looking for something special, I send an email stating what I want, I receive an answer the next day, Customer Service makes arrangements, for me to purchase whatever gems I need.
I am very impressed with the variety of stones, and the information on each one that allows me to see each specific stone before I purchase it. I also enjoy the articles on various aspects of gems, minerals etc. I am looking forward to getting my 1st order.
I have always been skeptical of ordering fine items online for fear of disappointment. Today, Thursday April 26, I received the blue sapphire which I ordered on Monday, April 23. Not only was I impressed with the rapid delivery of my sapphire, but I was very pleased with the way the stone was packaged and protected. The sapphire itself was far better quality than I had anticipated and it will make a beautiful centerpiece for the ring I'm having made. Thanks so much for the great experience...