Because pumice is lighter than obsidian always. That means obsidian weighs more than pumice.
1 fifth is one equal piece of a whole that was divided into 5 equal pieces.
A 50 cent piece and a nickel.
No because 5 is a odd and prime number
4 ÷ 2 = 2 so each piece measures two feet in length.
It should be 400 mm.
Yes, obsidian is dense. It is, therefore, heavy (compared to Pumice, which can float).
the answer is i dont no the answer is i dont no
pumice
My 8 year old found a large piece of obsidian in dansville ny this weekend. We are amazed by its size and beauty
Obsidian is an extrusive rock that cooled very rapidly without forming crystals. As a result, obsidian has a smooth, shiny texture of a thick piece of glass.
Try putting a piece in a glass of water and see what happens...
with a lighter
Low quality or common obsidian can be purchased wholesale for as little as 50 cents a pound. Retail costs are slightly higher and the price can rise considerably when purchasing rare colors such as red, green and blue. Also, large pieces are worth more, and price is also affected by the amount of impurities found in the piece. A football piece of good quality obsidian can sell for around $75.00.
The obsidian sun viewer works by using a specially designed piece of obsidian to filter out harmful rays from the sun, allowing only safe levels of light to pass through for observation. This protects the eyes from damage while still providing a clear view of the sun.
density = mass/volume 49.8/83 =0.6 g per cm3
Glass doesn't have a crystalline structure, or a specific chemical composition, so it is not a mineral. Obsidian is not a mineral for the same reason.
Arrowheads are typically made by carefully shaping a piece of stone, such as flint or obsidian, into a sharp, triangular point using pressure flaking or percussion techniques. This point is then attached to the end of an arrow shaft using a binding material, such as sinew or glue. The final arrowhead should be sharp and durable to effectively pierce targets.