School girl in Panajachel, Guatemala, selling fabrics. She says "Why don't you buy my stuff?" I gave her a little Australian flag.
Showing posts with label emeralds. Show all posts
Showing posts with label emeralds. Show all posts

Wednesday, October 8, 2014

Allano's eBook Trilogy on Latin American Travel


Allano has recently publish on the Internet the third travel ebook on his adventures traveling as a backpacker in Latin America. This final one covers his exploration of Venezuela, Ecuador, Peru, Uruguay and Brazil. The trilogy can be found at the following Smashwords websites:

Allano's Travels in Mexico and Guatemala
Allano's Travels in Chile and Argentina
Allano's Travels from Venezuela to Brazil

Check here for all ebooks written by Allano

Happy reading. Cheers Allano

Saturday, May 29, 2010

Facts about emeralds



Why are natural emeralds so rare in occurrence compared to beryl and aquamarine, which are the same mineral but a different color?

Why are beryls and aquamarines found in pegmatite deposits but rarely so are emeralds? If you are a prospector of gemstones and of emeralds you should know the reason before venturing forth.

To understand the occurrence of emerald and beryl in general you have to study the chemical composition of the mineral beryl and what causes the color. Beryl is a beryllium aluminum silicate which if it had no coloring impurities would naturally be colorless, and many are, such as the colorless gem beryl called “goshenite”. These crystals may have lots of alkali ions and water molecule impurities but these don’t cause any color.

Continue ... here