Deprecated: wpcf7_add_shortcode is deprecated since Contact Form 7 version 4.6! Use wpcf7_add_form_tag instead. in /home/travelnewsnamibi/public_html/wp-content/plugins/contact-form-7/includes/functions.php on line 540 Geology Archives - Travel News Namibia
This is the second in a series about the gemstones of Namibia. While definitions vary, most gemstones are naturally occurring minerals or rocks selected for their beauty, hardness, durability and rarity, for use as human adornment.
Most of Namibia’s mineral wealth has been discovered in the western portion of the country, where the arid climate has prevailed for millions of years, preventing minerals from eroding away, and precluding the development of topsoil and vegetation, making it easier to locate and extract them
This is the fifth article in a series about gemstones of Namibia. The first European awareness of Namibia's great mineral wealth came from the diaries of the Stellenbosch farmer Captain Hendrik Hop, recorded during his 1761-1762 scientific expedition, sponsored by the Dutch East India Company.
This is the sixth in a series of articles about gemstones found in Namibia. Lustre is a measure of the amount of light reflected off a surface. Among gemstones, diamonds possess the highest lustre, and are categorised as adamantine. Other categories include vitreous, resinous, pearly and silky.
This is the seventh in a series about the gemstones of Namibia. Hardness is a measure of a gem’s scratch resistance capability, based on its position on the
graduated Mohs scale, which rates minerals from talc, the softest mineral (1), to diamond, the hardest (10). Dioptase displays a hardness rating of 5.
This is the eighth in a series on the gemstones of Namibia. Dispersion is a measure of a gem’s property of separating light into its constituent colours, as a prism does, and is frequently referred to as the ‘fire’ of the gem. Demantoid ranks high among gemstones for dispersion; in fact, even higher than a diamond.
This is the ninth in a series about Namibian gemstones. Specific Gravity (SG) is a measure of the relative density of a gem, which varies in its chemical composition and crystal construction. By comparing the weight of the gem in air with its weight suspended in water, an SG value is established. Specific Gravity values are useful in identifying an unknown gem, or in determining the size of a new gem to be fitted into an old setting.
This is the tenth in a series about Namibian gemstones. Brittleness is one factor to be considered when buying and mounting a gem; it is not uncommon for a relatively hard stone to be brittle, particularly along facet cuts. To minimise damage, brittle stones are frequently used for necklace beads, pendants, or small ornamental sculptures. A relatively brittle stone, rose quartz has been cherished as a symbol of romantic love through the ages, and polished stones shaped like a heart are commonly presented as gifts to loved ones
This is the 11th in a series about the gemstones of Namibia. For a gem crystal to form, it must have room to grow, and time to develop. Crystals of quartz are among the largest in nature. They are found in pegmatite chambers where they have developed over hundreds of thousands of years.
How did it come about that a scrambled note written on a serviette in a Starbucks Café in Washington, D.C., in 2013 ended up as, well, a message about water conservation written in the sand at Namtib Biosphere Reserve in 2016? In May 2019 Anni Snyman, PC Janse van Rensburg and a team of volunteers from the Site-Specific land art collective fine-tuned the last lines of the giant earth drawing of a desert horse at Klein Aus Vista. This message of intent recently evolved into yet another possible new chapter – as I made my way down a secluded gravel road to a breathtakingly beautiful house in the middle of the desert: an artist’s retreat in the making at Wolwedans. But more about the other outcomes later: drawings of a wild horse – and the realm of “dancing wolves”.
Our daily lives can be a wonderful maelstrom of exciting moments, and yet our hearts may still yearn for new places, new faces, new moments of unique experience. A few years ago I came across the term “Generation Wanderlust”. It struck a chord.
Kaokoland... The ephemeral rivers in Namibia’s far northwest and the land between them are as fascinating as the different seasons. What you see is determined by the wind and the rain and the time of day.