They have them at Costco (7/29/09) for $15. Yes Today At Costco I got a High Sierra Streak Bag and checked the HS website to check if it was 15 online. Its great
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
The streak of Jade is white.
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because you streak four times
Chalcocite does not exhibit a streak because it is a soft mineral that usually leaves a black residue when streaked on a streak plate.
Corundum has no streak color. Because of being a clear white or light blue, its streak is actually clear.
Diamond will not leave a streak on a porcelain streak plate because diamond is harder than the streak plate. It will leave a scratch on the streak plate for the same reason.
It leaves a scratch instead of a streak because Topaz has a higher number on the Moh's scale compared to the streak plate.
Yes because its going to be about streak and Samantha yes because Samantha loves streak, and i will always
Aluminum does not have a distinct streak color because it is a metallic element. When tested for streak, aluminum will leave a silvery line resembling its natural color.
Amethyst, being quartz, would have a white streak.
Very hard minerals like diamonds can leave no streak because their hardness prevents them from being scratched by the streak plate. Since the streak test involves rubbing the mineral against a surface to leave a streak, extremely hard minerals won't leave a streak behind because they are tougher than the testing material.