Buy Issue 21 which is all about Crystals
Issue 21 which is all about Crystals includes;
The Crystal Wordsearch
What are Crystals?
Quartz and Watches
A Crystal Maze
About a Gemologist
A Box of Crystals
Let’s go Mining for Crystals
The Placebo Effect
Heidi and Carlos Talk About Crystals
A Crystal Radio
Chapter Three of Tripe Trouble: The Secret Crystal
A Quick Crystal Quiz
The awesome pyrite crystal is often called “fools gold” because it looks a lot like gold.
The way to tell that you have pyrite is that it is more brittle than gold.
A couple of hundred years ago it was used to help make sparks – for example in early weapons.
Another difference is that pyrite often forms into cubes or cuboids like the one in the picture above. Gold tends to form in blobby looking nuggets.
Fun Facts about Diamonds
Diamonds are the hardest natural substance found on Earth. Interestingly, the only thing which can scratch a diamond, is another diamond!
Diamonds normally form about 100 miles under the surface of the Earth. That makes them very difficult to mine. But luckily, volcanic activity melts rock which helps bring diamonds to the surface.
Diamonds are the only gemstone which are made from just one element. That element is carbon, which is the same stuff life on Earth is based on.
Similar Issues to Crystals
Buy Issue 21 which is all about Crystals – Useful Links
|Dimensions||21 × 14.8 × 0.4 cm|