Dumortierite Quartz Gemstone Information

About Dumortierite Quartz - History and Introduction

Dumortierite quartz stands out as one of the rarer blue varieties among quartz gemstones. It's essentially a mix of quartz aggregate intertwined with the mineral dumortierite and its properties and uses. While quartz comes in many colors, blue ones are surprisingly uncommon. The dumortierite inclusions give it that unique shade, ranging from light to dark blue, and sometimes even reddish-brown.

This material has an aluminum borosilicate composition, with hardness varying from 7.0 to 8.5 on the Mohs scale. When in aggregate form - like most cut gems - it's around 7.0, matching regular quartz, but crystals can hit 8.5. First described in 1881, it honors French paleontologist Eugene Dumortier (1803-1873). Beyond jewelry, dumortierite has practical uses; it fires to a bright white, making it great for porcelain and ceramics production.

Identifying Dumortierite Quartz

As one of the few gem-quality blue quartzes, dumortierite quartz is distinctive. Most blue quartz is opaque or translucent, so if you encounter transparent blue material, it's wise to verify it thoroughly. Dumortierite itself is identifiable by its aluminum borosilicate makeup.

Its color might remind you of other blue gems like lapis lazuli, azurite, or sodalite. That said, dumortierite quartz is notably harder and tougher than those alternatives, making it a standout choice for durability.

Dumortierite Quartz Origin and Gemstone Sources

You'll find dumortierite quartz deposits in places like Brazil, Canada, France, Italy, Madagascar, Mozambique, Namibia, Norway, Poland, Sri Lanka, and the United States. Brazil often leads as a key supplier for gem-quality material.

Buying Dumortierite Quartz and Determining Value

Dumortierite Quartz Color

Colors span from red-brown to violet-blue, but dark blue is what you'll see most often. The hue isn't always uniform - think patches of deeper and lighter blue, much like lapis lazuli or sodalite. Some pieces show white streaks or spots too. Those dumortierite impurities are what create the blue tones.

Dumortierite Quartz Clarity and Luster

This is quartz packed with dumortierite inclusions, so stones are typically opaque, though rare fine ones might be slightly translucent. Expect a waxy to dull sheen, typical for quartz aggregates.

Dumortierite Quartz Cut and Shape

Cabochon cuts are standard, shaped into ovals, rounds, or even larger sizes. Calibrated pieces are easy to find, but fancy shapes? They're out there, just not as common.

Dumortierite Quartz Treatment

Good news here - dumortierite quartz isn't known for any treatments or enhancements. What you see is natural.

Dumortierite Quartz Gemological Properties

Please refer to our Gemstone Glossary for details of gemology-related terms.

Dumortierite Quartz: Varieties or Similar Gemstones

Dumortierite quartz is just one type in the vast world of quartz gemstones, which makes up about 12% of Earth's crust - it's the second most abundant mineral around. For blue hues, it shares similarities with lapis lazuli, sodalite, azurite, and even fibrous quartz with blue magnesioriebeckite or crocidolite inclusions.

Sometimes it's marketed as 'blue moon quartz' or 'blue denim stone,' but those aren't official names. Just keep in mind, if you're hunting for alternatives, there are plenty in the quartz world.

Most Popular Related Gemstones

Rutile quartz, aventurine quartz, rock quartz, smoky quartz, rose quartz, bloodstone, cat's eye quartz, agate, chalcedony, carnelian, amethyst, citrine, and ametrine are among the favorites.

Lesser-Known Related Gemstones

Hawk's eye, prasiolite, heliotrope, chrysocolla chalcedony (gem silica), sardonyx, sard, prase, onyx, mystic quartz, strawberry quartz, and blue quartz round out some rarer options.

Dumortierite Quartz Gemstone Mythology, Metaphysical and Alternative Healing

This blue quartz variety is believed to boost organization and self-discipline. It's seen as a gem of peace, order, and expression, particularly helpful for the throat chakra while aiding communication across chakras.

Many say it sharpens the mind, enhancing math and language skills. It might help overcome fears, build courage, and break stubborn habits or addictions. If you're looking for more patience or control in life, this stone could be worth considering - though, as always, results vary.

Dumortierite Quartz Gemstone and Jewelry Design Ideas

With its solid hardness and durability, dumortierite quartz works well in all sorts of jewelry - from pins and pendants to bracelets, necklaces, and rings for daily wear. Large sizes at affordable prices make it a go-to for designers.

That striking blue appeals to everyone and serves as a hardy substitute for softer stones like lapis or sodalite. Often cut into beads or cabochons, it's perfect for strung pieces or even carvings like animal figurines. You might not spot it in every store, so check specialized sellers if you're interested.

Note: Buy colored gemstones by size and not by carat weight. Colored stones vary in size-to-weight ratio. Some stones are larger and others are smaller than diamonds by weight in comparison.

Dumortierite Quartz Gemstone and Jewelry Care and Cleaning

Dumortierite quartz is tough, but watch out for harder gems like topaz, sapphire, or diamond that could scratch it. Clean it simply with warm soapy water and a soft cloth, rinsing thoroughly.

Skip harsh chemicals, as they might harm the color. Avoid extreme heat too. Remove jewelry before sports or chores, and store it separately, wrapped in soft cloth or a lined box, to keep it safe.

Frequently Asked Questions