Archives for March, 2017

Cranes in Sydney

The image below is compelling evidence of the property boom in Sydney and Melbourne. The cranes are everywhere, is some places one can see as many as 20 within a kilometre or two. And it seems most streets in the city have houses being demolished and replaced with McMansions. This…

Specialty Metals and Minerals: Garnet

Properties All garnet minerals are alumino-silicates, the following table lists the most common types of garnet minerals. Note that these are “end member” formulas, it is possible for replacement to occur. For example, the calcium in grossular is often replaced by iron.   Mineral Formula Specific Gravity Hardness (Mohs) Almandine…