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POPULAR PSEUDOMORPHS - More Common Varieties Enhance Any Collection
In part one of this two-part series, which appeared in the December 2020 issue of Rock & Gem, we explained pseudomorphs as minerals whose normal form has changed, so they may look like the original but are now another mineral.
New Era Gems - CARVING A PATH AND CREATING A LEGACY
Think back to your 20th birthday; what were you doing? How did you celebrate?
DIAMONDS - A Luxury Gem Steeped in Fact & Fable
The diamond is one fabled gemstone! For example, google “Hope Diamond” to see all the legends associated with just this one stone said to bring misfortune to its owners.
Cleaning Without Chemicals
Do you have specimens like desert roses, quartz crystal clusters, or geode halves that sat for eons in the open before being collected?
Black Ilmenite and “Titanium White”
The bright-white color that we see in everything from highway lines, donut icing, and tooth-paste to paint, paper, plastics, and ceramics comes mostly from titanium dioxide, the world’s most widely used pigment.
POPULAR PSEUDOMORPH MINERALS
More Than They Seem
Prehistoric Birds Take Flight and Pique Public Interest
Birds have really taken flight these past two decades—ancient birds, that is! A flurry of new research has led to a flurry of books with titles like Dinosaurs of the Air, The Mistaken Extinction: Dinosaur Evolution and the Origin of Birds, Mesozoic Birds: Above the Heads of Dinosaurs, and The Rise of Birds, among others.
Uncommon Dinosaurs
Southern Continents Reveal Uncommon Giants
ZOISITE
A Massive Mineral Marked by Christmas- Like Color and Appeal
Odie House
A good friend, and wonderful artisan both lapidary and silversmith h, Odie is always fun to chat with. There is always something beautiful to see when Odie is in the “house.”
PLEASING PYROPE
Italy’s Uniquely Valuable Variety of Garne
Joplin
Field Trip Findings: Gaining More Than Mineral Specimens
GEOLOGY 101 Columnar Basalt
A distinctive volcanic structure found throughout the world has been given fanciful names: “Organ Pipes” in Namibia and Victoria, Australia; “Kilt Rock” and “Samson’s Ribs” in Scotland; “Giant’s Causeway” in Northern Ireland; “Thunderstruck Rocks” in Romania; “Devils Tower” in Wyoming and “Paul Bunyan’s Woodpile” in Utah, USA; the “Baigong Pipes” in China; and the “Cliff of Stone Plates” in Vietnam. High-resolution satellite images have even shown similar as-yet-unnamed structures on Mars.
“Finger Printing” Turquoise
Answering the Question of Provenance
10 Fascinating Facts About Opal
The name “opal” is the subject of long-standing debate. Some accounts cite the origin of the name to be the Latin word opalus, while other reports state it hails from the Greek word opallios.
Sanding and Polishing Thundereggs
Two basic lapidary machines can be used to sand and polish thunderegg halves quickly. Both involve sanding the pieces dry.
Studying Nature's Impact on Ancient Civilization and Tuning In Online to Make Sense of Meteorites
Okmok. In remote Alaska. A strange name and a strange place for what some scientists and historians now say caused the downfall of the Roman Republic and the Egyptian Ptolemaic Kingdom shortly after the demise of Julius Caesar.
San Diego Mineral & Gem Society & Museum
CELEBRATING, SHOWCASING, AND PRESERVING NATURAL AND COMMUNITY HISTORY
THE SAN DIEGO NATURAL HISTORY MUSEUM Hot Pink Tourmalines, Kunzites & Fossils
At the famous Balboa Park in San Diego, just south of the San Diego Mineral and Gem Society & Museum, is the San Diego Natural History Museum (SDNHM) — or the Nat as the locals call it. SNDNHM is one of the most significant natural history museums in the country.
PATRIOTIC PRIDE
Exploring Jerry Muchna’s Salute to America in Faceted Quartz
Marvelous Micromounts
TURNING TO “MICROS” FOR A UNIQUE EXPLORATION AND APPRECIATION OF ABUNDANT MINERALS IN FRANKLIN, NEW JERSEY
JOHN SINKANKAS
Award-Winning Mineralogist, Gemologist, Mentor, and Military Veteran
Diane's Oval
One of the many benefits of being a lapidary artist is the opportunity to spend time doing something you love to create one-of-a-kind art and jewelry to sell to someone who finds it enchanting or to give as a gift to someone special. It’s a win-win, whatever the reason or result.
Bluebird Chrysocolla
Bluebird Chrysocolla comes from an old copper mine in Gila County, Arizona.
Palatki Red Cliffs Ancient Painters' Palette
In the shadow of the famous red cliffs of Sedona, the ancient ruins of Palatki remain silent for nearly 700 years. The Palatki Red Cliffs is a designated World Heritage archaeological site that contains cliff dwellings, pictographs, and petroglyphs created by the Sinagua people of the Ancestral Puebloans.
Turning to the “Other” Tourmaline Crystals
COMPLEX, PLENTIFUL, AND AFFORDABLE
What New Things Are You Learning?
For many within the rockhounding community, the answer to our headline could be a combination of several technological applications. During a conversation with a reader recently, the kind gentleman from Tennessee shared with me details about his experience setting up a virtual meeting for his mineral club, and how at the young age of 74, he was selected to “figure it out,” because he was a former teacher. As he said to me, “Teaching is one thing. Technology is something altogether different.”
Something New at Biggs Junction
EXPLORING A NEW DEPOSIT DISCOVERY IN NORTH CENTRAL OREGON
Mexican Purple Passion Agate
Mexico has long been a source of brilliant colored banded and lace agates, but, for the last couple of years, one agate, in particular, has generated a lot of attention: Purple Passion!
NEVADA'S CARLIN TREND
AMERICA’S GREATEST GOLD-MINING DISTRICT