章 280: Chapter 280: Accident, Assassinated

"This is fluorite, not jade," Jiang Man said gravely, furrowing her brows.

Chen Anna was astonished and truly admired Jiang Man's ability to discern. Just by taking one look, she could actually tell the material?

"Fluorite? What's the difference between it and jade?" Chen Anna asked earnestly.

Jiang Man began to teach on the spot, hands in her pockets and the tips of her eyebrows raised, "Fluorite is crystalline in formation, has cleavage, no impurities. Colors include purple, green. It comes in both transparent and translucent. It has a vitreous luster, a specific gravity of 3.2, a hardness of 4, and is brittle. Jade is generally found in dense block form, it's delicate, ranges from slightly translucent to semi-translucent, with a vitreous, greasy, or semi-greasy luster, a specific gravity between 2.6-2.98, and can be brittle, tough, or slightly tough, with a hardness ranging from 4.5-6.5."