Yes, obsidian is dense. It is, therefore, heavy (compared to Pumice, which can float).
Its accurate density is 2.6 of water at a temperature of 25 Celsius it is equal to 77 degree Fahrenheit.
2.6 g/cm3 average
Obsidian has a hardness of about 5.
The density is 2,57 g/cm3.
It will be In the year 2392.
I try to get data on the structure of beta-cristobalite, SiO2. On I find the following: Cristobalite Downs R T, Palmer D C American Mineralogist 79 (1994) 9-14 The pressure behavior of alpha cristobalite P = room pressure _database_code_amcsd 0001629 4.9717 4.9717 6.9223 90 90 90 P4_12_12 atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .30028 .30028 0 .0077 .0077 .00401 -.0003 .0008 -.0008 O .2392 .1044 .1787 .0244 .0086 .0062 -.0013 .0027 .0005 I have no idea what this means. I know the unit cell should have 4 Si atoms, and each should bond to 4 O atoms. What information is given from these numbers (all of them)?
0.0017
2392
It will be In the year 2392.
Multiply it by 100 to change it into a percentage
(800) 493-2392
52 x 46 = 2392
(052) 481-2392
Flora Europaea has 2392 pages.
A circle with a radius of 15 inches has a circumference of: 94.2 inches.
299, 598, 897, 1196, 1495, 1794, 2093, 2392, 2691, 2990.
The country code and area code of Werdohl, Germany is 49, (0)2392.
The address of the Girls With Wings Inc is: 2116 Beacon Drive SW, Rochester, MN 55902-2392