like the radula and the odontophore

The color is caused by impurities of iron within the quartz crystal

showing a remnant of fusion crust and is a very desirable size perfect to show in class or at a science show

Here we have for you a nice looking individual cut fragment of a Sahara Desert NWA unclassified meteorite weighing 124

Color: Lemon yellow

Sapphire | 13 Piece Gemstone Lot | Oval Cut | Green to Yellow | 3.6-4.0x2.6-3.0mm 2.8tcw | SO24 Lepidolite like the radula and theProduct Type: Sapphire 13 Piece Lot Approx Weight (per Lot): 2. 8tcw Size: 3. 6 4. 0x2. 6 3. 0mm Shape: Oval Cut Color: Green to Greenish Yellow Clarity: SI (Slightly Included) Origin: Thailand