natural gemstone carving selenite stick crystals minerals specimen rough point healing stones

Unearth a treasure trove of knowledge of over 130 gemstones from around the world. Learn how gemstones are formed and how to recognise them by their unique qualities and colours. A wonderful book for beginners, students, and gemstone-enthusiasts that includes the latest scientific research and gemstone classification. Gemstones is filled with all you need to know about these fascinating minerals - cut and uncut stones, organic gemstones, and precious metals. Inside you’ll find: - Fast facts for quick reference, including chemical composition, hardness, gravity, lustre, and reflective value - Photo close-ups of key details and highlights of distinguishing features - Illustrations of faceting and shapes popular for each gemstone - A detailed introduction to everything a beginner gemologist needs to know including how gemstones form, the different properties, crystal shapes, faceting, and the history of gems Delve into the one-of-a-kind characteristics, colours, and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone’s entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems. Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified, and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones, and precious metals. It includes a glossary for many more technical and scientific terms and over 800 high-quality photos of gems. It’s the ideal gift for any budding gemologist. The DK Handbook series is an incredible collection of titles that fascinate curious minds. Other books include Rocks and Minerals, Dinosaurs, and Prehistoric Life, and Stars and Planets.

Мы предлагаем:

xc6slx16 fpga new board xilinx 232 ethernet | sot23 6 to dip8 programmer adapter for pic series chip test socket sot23 dip adapter cnv sot pic10f20x1 adapter programmer micro | стакан для зубных щеток ridder roller 2105207 серый | halestorm halestorm live in philly 2010 colour 2 lp | компакт диски island records keane the best of cd | ren xds100v2 emulator usb downloader is suitable for ti series chip supporting 64 bit operation system | xilinx platform cable usb fpga cpld download the debugger support the jtag slave serial spi is stable | new xilinx platform cable dlc10 usb download cable jtag programmer for fpga cpld support xp win7 win8 linux cy7c68013a beyond | cc debugger cc2530 zigbee simulator debugger downloader | sa628 b102 apply to xeltek programmer adapter tsop56 to dip48 adapter ic test socket | a7 35t artix 7 xilinx fpga module digilent | бартлетт дэрил wordpress для начинающих | spi flash usb programmer ch2015 tfbga24 to dip8 adapter bga24 6x8mm for flash 25q64 25q128 eeprom avr data falsh programmer | the grateful dead 50th anniversary deluxe edition picture disc vinyl | xilinx usb downloader jtag smt2 nc mounting programming module digilent | kaaral dev plus осветляющая эмульсия dev plus 3 | xilinx usb download cable platform usb cable download line hw usb ii g dlc10 | altera xilinx lattice three in one fpga downloader jtag hs3 usb blaster | dlp hs fpga a usb fpga module xilinx spartan 3a module new board | xilinx platform cable usb download line simulator | xilinx fpga minimum core board xc6slx16 usb sdram compatible lx9 lx25 | стакан для зубных щеток ridder touch 2003207 серый | держатель зубных щеток и пасты ridder brick 22150207 | стакан для зубных щеток ridder fashion 2001110 черный | аккумулятор team orion batteries ranger 3000 nimh 7 2v battery t plug |