Sapphire, along with Ruby are types of Corundum, which is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks. It is an Aluminum Oxide, as it is known in mineralogy circles with a chemical composition of Al2O3 and forms … Read More
Hardness of common materials. One of the most important tests for identifying mineral specimens is the Mohs Hardness Test. This test compares the resistance of a mineral to being scratched by ten reference minerals known as the Mohs Hardness Scale. The … Read More
Sapphire is found in the Central Queensland Gem-fields around 307km West of Rockhampton, Queensland via the Capricorn Highway and about a 45 minute drive West of Emerald. Just North of the Anakie turnoff and on the way to Rubyvale is where you … Read More
The Department of Natural Resources and Mines is an economic development agency that enables the productive and responsible use of our natural resources – water, land, mineral and energy resources – to generate wealth and prosperity for current and future … Read More
Below is our full Ring Size Chart. It shows ring sizes in both MM and Inches, plus Inside Diameter and Inside Circumference. It also shows conversions between the numerical (USA, Europe, Asia) and alphabetical (Australia, UK) ring size measuring systems. … Read More
At the face of the hole you will notice top soil which contains vegetation; the sub-soil that supports the top soil, and then a rubbly or friable band containing iron stones, small pebbles and maybe medium sized basalt rocks. This is … Read More
The process of cutting and polishing gems is called Gemcutting or Lapidary, while a person who cuts and polishes gems is called a Gemcutter or a Lapidary (sometimes lapidarist). Gemstone material that has not been extensively cut and polished is referred to generally as Rough. Rough material … Read More
1.1. Ken’s Sapphires respects your right to privacy and is committed to safeguarding the privacy of our customers and website visitors. We adhere to the National Privacy Principles established by the Privacy Act1988 (Cth). This policy sets out how we … Read More