Check the specific gravity again - it should be about 1.042.
Specific gravity can be measured in a number of ways.
It is a heavy wood, with a specific gravity of 1.1 when green.
The specific gravity of the more common rocks range from about 2.5 to 3.2.
You might want to read up on density and specific gravity.
They are usually light in color and have specific gravities less than 3.
It has a specific gravity ranging from 1.058 to 1.077.
Used to separate materials on the basis of specific gravity.
There is only one thing they lack, the right specific gravity.
For a general use of specific gravity, see relative density.