September 2019

Spinel is the magnesium-aluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is actually a large group of minerals. Gahnite, hercynite, ceylonite, picotite, and galaxite are all part of the spinel group. This oxide mineral is a Cubic crystal system with 7.5–8.0 hardness according to the Mohs hardness scale. Spinels Specific Gravity is depending on the composition of chemicals such as Zn-rich spinel can be as high as 4.40, otherwise, it averages from 3.58 to 3.61. Spinel has many colors such as red, pink, blue, lavender/violet, dark green, brown, black, colorless, gray. Spinel is a single reflective Non-pleochroic gemstone and Anomalous in some blue zincian varieties. It can be found as Opaque, Translucent or transparent. Spinel RI value is n = 1.719 Some red and pink spinels have fluorescence under UV Light. also, Some spinels have magnetism Weak to medium. Natural spinels typically are not enhanced. Spinels are found in Madagascar, Sri Lanka, Vietnam, Myanmar, Tanzania, Kenya, Nigeria, Afghanistan, Albania, Algeria, Atlantic Ocean, Australia, Belgium, Bolivia, Brazil, Cambodia, Canada. Spinel has long been found in the gemstone-bearing gravel of Sri Lanka. Since 2000 in several locations around the world have been discovered spinels with unusual vivid colors. when the mineral is pure, it’s colorless. That's called allochromatic gemstones. Als, Spinels are found with 4-rayed stars and 6-rayed stars. Some spinels are found with a color-changing effect such as Blue to violet, Grayish-blue to reddish-violet and some stones from Sri Lanka change from violet to reddish violet, due to the presence of Fe, Cr, and V. Blue Spinel is a very special gemstone because it is one of the few that occur naturally. The blue Spinel is colored from the impurity of Cobalt in the crystal lattice. High Color saturation in blue Spinels are always colored by Cobalt and are extremely rare to find. Cobalt spinel has high market value. Healing Properties of Spinels 👇 Spinel is known as the stone of revitalization. This MgAl2O4 mineral powers make the gums and teeth stronger and is also beneficial for gums, skin, slimming the healthy and overweight body and cancer healing. Spinel promotes physical vitality, refills the energy and eases exhaustion. Spinel is a very soothing stone, as it calms and relieves stress, anxiety, PTSD and depression. Also, Spinel is working with chakra balancing. Black Spinel - Earth Star Chakra , Red or Pink - Spinel Base Chakra, Green Spinel - Heart chakra, Blue Spinel - Throat chakra, Purple Spinel - Crown chakra.

Natural Red Spinel Rough Stone from Vietnam

Danushka
September 12, 2019
Spinel source value price healing - Danu Group

Spinel

Danushka
September 11, 2019

Gem Industry in Sri Lanka

Danushka
September 9, 2019

Natural Zircon Heating Process

Danushka
September 6, 2019
Lapis lazuli is a deep blue metamorphic ( arise from the transformation of existing rock types) rock used as a semi-precious stone, a mixture of minerals with lazurite as the main constituent. Lazurite is a tectosilicate mineral with sulfate, sulfur, and chloride. Lapis lazuli can be found colors such as Blue, or purple, mottled with white calcite and brassy pyrite. As Physical Properties, It has Uneven and Conchoidal fractures and a dull luster. Lapis Lazuli specific gravity is 2.7–2.9 with 5–5.5 hardness according to the Mohs hardness scale. The refractive index is Refractive Index1.500 to 1.670 as optical properties. The variations in composition cause a wide variation in the specific gravity, Refractive index and hardness values. At the end of the Middle Ages, lapis lazuli began to be exported to Europe, where it was ground into a powder and made into ultramarine, the finest and most expensive of all blue pigments. In ancient Egypt, lapis lazuli was a favorite stone for amulets and ornaments such as scarabs. Lapis lazuli is found in Afghanistan, Russia, Chile, Italy, Mongolia, Pakistan, the United States, and Canada. Afghanistan is the major source of lapis lazuli. Healing properties of Lapis lazuli 💎 Lapis lazuli associates with Throat Chakra and Third Eye Chakra. Lapis Lazuli activates the psychic centers at the Third Eye and balances the energies of the Throat Chakra. Also, Lapis lazuli is the September birthstone. Lapis Lazuli releases stress, bringing peace, harmony, and inner self-knowledge.  Lapis Lazuli boosts the immune system, purifies the blood and lowers blood pressure. Lapis is one of the oldest spiritual stones known to man, used by healers, priests and royalty, for power, wisdom and to stimulate psychic abilities and inner vision.

Lapis lazuli

Danushka
September 4, 2019
various Shapes of Ceylon Sapphire Crystals

Various Shapes of Ceylon Sapphire Crystals from Sri Lanka

Danushka
September 2, 2019