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* Color is clear, yellow, orange, red, blue and green. * Luster is adamantine to vitreous. * Transparencycrystals are transparent to translucent. * Crystal System is orthorhombic; 2/m 2/m 2/m * Crystal Habits include a prismatic crystal with usually two different prisms that produce a rounded or sharp diamond-shaped cross-section. The termination is typically capped by a dome forming a roof like top. Another dome can modify the termination producing a point at the juncture of the two domes. A basal pinacoid can flatten the prisms termination or truncate the top of the domes. The pinacoid, multiple domes and occassionally orthorhombic pyramid faces can produce a complex, multifaceted and well formed termination. Topaz can be granular and massive. * Cleavage is perfect in one direction, basal. * Fracture is conchoidal. * Hardness is 8. * Specific Gravity is approximately 3.4 - 3.5+ (above average) * Streak is white. * Associated Minerals include quartz, tourmalines, micas, brookite, cassiterite and fluorite. * Other Characteristics: index of refraction is 1.61 - 1.64. Prism faces maybe striated lengthwise. * Notable Occurrences include Minas Gerias, Brazil; Pakistan; San Diego Co, California; Ural Mountains, Russia; Mexico and the Thomas Range, Utah. * Best Field Indicators are crystal habit, color, density and hardness.

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What mountains can you find topaz?

Topaz Mountain is located in Utah (state gem is topaz) and it does have topaz in this mountain


What are today's modern uses for the mineral Topaz besides jewelry?

Topaz is used in a variety of industrial applications, such as in the manufacture of abrasives, ceramics, and electronics. It is also used as an ingredient in some toothpaste formulations due to its abrasive properties. Additionally, topaz is sometimes used as a gemstone in decorative objects and sculptures.


How much did the biggest blue topaz weigh?

Thar marbella stone I think it was called, which is the biggest blue topaz.


How can you tell blue topaz or blue sapphire?

Blue topaz is typically more affordable than blue sapphire and has a lighter, brighter blue color. Blue sapphire is a precious gemstone that is harder than topaz and has a deeper, more intense blue color. You can differentiate between the two based on price, color intensity, and hardness.


What is the difference between topaz and zircon?

Topaz and zircon are both gemstones, but they differ in composition and characteristics. Topaz is a silicate mineral composed of aluminum and fluorine, often found in a range of colors, including blue, yellow, and colorless. Zircon, on the other hand, is a zirconium silicate mineral, typically occurring in a variety of colors, including brown, green, and clear, and is known for its high brilliance and fire. Additionally, zircon has a higher density than topaz, and they can be distinguished by their optical properties and crystal structures.