4.6 (178) In stock
Do any meteorites contain metal? - Quora
What is the name of the mineral used to make the pigment 'cobalt blue'? - Quora
Where is Tanzanite primarily found? - Quora
What causes blue clay in the Earth? - Quora
What is the Jacob Diamond? - Quora
How was lapis lazuli paint, as used before synthetic colours, made? Did the recipe change over time or was it fairly or wholly constant from the time it was first used?
What color is made when you mix white with teal? - Quora
Is Tanzanite a rare gemstone? - Quora
What is this stone? - Quora
Are crystals formed by different minerals the same? How are they different? - Quora
What mineral is this (see link)? - Quora
Can you identify the green vein mineral in serpentinite? - Quora
What gems are corundum? - Quora
Which metal from the periodic table has the color blue? - Quora
How is cobalt used? - Quora