SKY BLUE AGATE

Agate is a banded chalcedony, occasionally mixed together. The bands can be of different colors or also of a very uniform tone. 

3,000 years ago, agate was already used as a gemstone by the Egyptians. It is currently used in art objects, jewelry stones and also in industry because of its toughness and acid resistance. The most common colors are red, orange, brown, white, gray and blue-gray. The ancient Romans already knew the art of dyeing them, this procedure is done naturally or accelerated in a thermochemical process.

BLACK AGATE

Black agate is a striking gemstone known for its deep, opaque black color and smooth, polished surface. Its subtle luster and uniform appearance make it a versatile choice in jewelry, offering a sleek, modern look while carrying a timeless, understated elegance.

The main agate deposits are found in southern Brazil. They are also common in Uruguay.

 

GREEN AGATE

Green agate is a soothing and earthy gemstone known for its rich, translucent shades of green, often layered with subtle bands or natural patterns.

 

RED AGATE

Red agate is a striking variety of agate, a form of banded chalcedony, prized for its warm hues ranging from deep crimson to rusty orange. Its layered patterns often display subtle translucence, giving the stone a rich, glowing appearance when light passes through it. Formed in volcanic rock cavities over millions of years, red agate is both durable and smooth, making it ideal for jewelry and ornamental use. 

 

BLUE KYANITE

Blue Kyanite is a stunning natural crystal known for its vibrant hues and powerful energetic properties. A favorite among gem enthusiasts and designers.

 

Blue Kyanite is a bladed, striated mineral found in metamorphic rocks, often shimmering in shades ranging from pale sky blue to deep sapphire. It’s part of the aluminosilicate family and is prized for its translucent glow and unique internal structure.

Color: Light to dark blue

Crystal System: Triclinic

Hardness: 4.5 to 7 (varies by direction)

Origin: Commonly sourced from Brazil, Nepal, the United States, and Kenya

 

BEIGE AMAZONITE

Amazonite is a stone from the feldspar group, with perfect hardness for cutting and use in jewelry. It can be found in Brazil, United States and Canada.

CHARACTERISTICS:

Group: Potassium, Feldspar.

Hardness: 6 – 6.5.

Relative density: 2.56 – 2.58

Source materials: Potassium, aluminum, silica with magnesium, rubidium, iron, sodium, calcium, traces of selenium.

Transparency: Opaque.

Color: Shade between beige, salmon or intense orange.

Fracture: Uneven.

 

AMETHYST

The name Amethyst comes from the Greek Amethystós. It is the symbol of the third eye, which sees everything. Also a symbol of modesty. Amethyst has a violet color, slightly transparent and of rare beauty. Amethyst is abundant in Brazil and can be found in pieces weighing up to 2 meters and 3 thousand kilos.

CHARACTERISTICS:

Group: Quartz

Incidence: Clean crystals and geodes.

Hardness of Mohs: 7.

Relative density: 2.65.

Occurrence: Southern Brazil, Uruguay.

Chemical Composition: SIO2 (Silicon Oxide).

Transparency: Transparent.

Fluorescence: Faint, greenish.

Color: Dark violet, black, gray and light pink-violet with great luminosity.

Crystalline System: Hexagonal (trigonal), most often prisms.

Fracture: Concoid, brittle.

ROCK CRYSTAL

Crystal also known as hyaline quartz. Formerly called just crystal, “rock” was added to distinguish it from glass crystal. The main deposits are found in the USA, Brazil, Madagascar and the Alps, in Europe. The word crystal comes from krystallos, a Greek word meaning “ice”.

CHARACTERISTICS:

Group: Quartz.

Hardness of Mohs: 7.

Relative density: 2.65.

Chemical Composition: SIO2 (Silicon Oxide).

Fluorescence: usually none.

Color: colorless.

Crystal System: trigonal, prismatic crystals, six faces.

Fracture: conical, brittle.

 

EMERALD

An emerald is a vivid green gemstone from the mineral beryl, prized for its rich color and natural inclusions known as “jardin,” which give each stone a unique, organic character. Its color ranges from fresh grassy green to deep, velvety forest tones, often enhanced by trace amounts of chromium or vanadium.

CHARACTERISTICS:

Incidence: Very Rare

Hardness: 7.5 – 8.0 on the Mohs Scale

Occurrence: Brazil, Zimbabwe and Afghanistan

Chemical Composition: (Be3Al2(SiO3)6)

Colors: Shades of green

Crystalline System: Hexagonal

Where to find: Brazil, Zimbabwe and Afghanistan.

 

HOWLITE

Natural Howlite is white and due to its porosity it is easily dyed in yellow, salmon and other colors. Its name comes from its discoverer, the Canadian chemist, geologist and mineralogist Henry How, who first described it in 1868, indicating the approximate chemical composition. Despite having been discovered in Canada, today the main sources are the USA, Canada, Turkey and Africa.

The Indians believed that Howlita possessed the life force and that it did not allow people to forget that humans, nature and animals belong together, in a reciprocal harmony.

CHARACTERISTICS:

Group: Borates.

Hardness of Mohs: 3.5 – 6.5.

Relative density: 2.45 – 2.58.

Chemical composition: Ca2 ((BOOH)5/ SiO4).

 

POLYCHROMATIC JASPER

This stone stamped surface makes each piece unique. Jasper is mainly found in Madagascar, Brazil, Uruguay, Egypt and Canada. It has dense and varied colors.

The Jasper stone is included in the chalcedony group. Its name comes from the Greek and means “stained stone”.

CHARACTERISTICS:

Group: Chalcedony

Hardness of mohs: 6.5 – 7.

Relative density: 2.58 – 2.91

Chemical composition: SiO2, silicon oxide.

Transparency: Opaque.

Color: All shades of color, usually with streaks or spots.

Fracture: Shattered.

MOTHER OF PEARL

Straight from the sea, natural mother of pearl is an inner layer of shells. It is considered an organic gem, as is Amber. Mother-of-pearl or nacre is the layer that covers the interior of some molluscs, with a composition similar to that of the pearl, being its constituent material. It occurs mainly in Australia, USA, New Zealand and China.

CHARACTERISTICS

Colors: white, beige, grey.

Classification: Organic.

 

NAUTILUS

The Nautilus natural shell is very popular for its geometric spiral shape, being the subject of mathematical studies of the famous formula of the “Golden Proportion”, the Fibonacci sequence. The shell has a shiny, pearlescent layer, very similar to mother-of-pearl.

The inner layer of the Nautilus shell has an opal effect, and it is estimated that this shell has been in nature for 450 million years. Therefore, it is considered an organic yolk.

Characteristics:

Colors: translucent, iridescent.

Classification: Organic

 

SMOKED OBSIDIAN

Obsidian is a volcanic rock. The stone has a light transparency and shine. Obsidian is born from the decomposition of volcanic lava. It is a natural volcanic glass that occurs in dark tones (black, gray and brown) and may have white inclusions of cristobalite. It can be found in Ecuador, Indonesia, Italy, Japan, Mexico, USA and Russia.

CHARACTERISTICS

Group: Volcanic glass.

Mohs Hardness: 5–6.

Relative density: 2.4.

Chemical composition: 70–75%SIO2 (Silicon Oxide), with MgO, Fe3O4.

Fluorescence: none.

Color: black, grey, brown, green.

Fracture: Concoid, with sharp edges.

 

TIGER EYE

When cut in cabochon, it shows a narrow luminous band on the surface that resembles a cat’s pupil. The Arabs believed that the stone brought joy and heightened the senses. 

CHARACTERISTICS

Group: Quartz.

Hardness of Mohs: 7.

Relative density: 2.58 – 2.64.

Chemical composition:SIO2 (Silicon Oxide).

Transparency: opaque.

Fluorescence: none.

Color: golden yellow, golden brown

Fracture: fibrous.

 

OPALINE

Inspired by Pedra da Lua, its translucent colored effect easily adapts to the routine in different looks. Opaline is a reconstituted gem, that is, it is made through the agglomeration or partial fusion of fragments of a gemological substance, in this case, Pedra da Lua. It appeared in France in 1840 after a mistake in the manufacture of crystal mass and resulted in translucent aspect that reminds the natural stone Opal, the name that inspired it.

CHARACTERISTICS:

They are obtained by pressing and casting together flakes or powder from real gemstones.

 

GOLDSTONE

Its orange color is very popular in accessories in the summer season. Goldstone is a reconstituted gem, that is, it is made through the agglomeration or partial fusion of fragments of a gemological substance.

CHARACTERISTICS:

They are obtained by pressing and casting together flakes or powder from real gemstones.

 

STAR STONE

The star stone has a dark background and micro bright spots that resemble the cosmos. Stars stone is a reconstituted gemstone, that is, it is made through the agglomeration or partial fusion of fragments of a gemological substance.

CHARACTERISTICS

They are obtained by pressing and casting together flakes or powder from real gemstones.

 

GREEN QUARTZ

Green quartz is also known as aventurine quartz. Since ancient times, quartz varieties have been the most used minerals in the manufacture of jewelry and stone sculptures, especially in Europe and the Middle East. There are important deposits in Brazil, India, Austria, Russia and Tanzania.

CHARACTERISTICS:

Group: Quartz.

Hardness of Mohs:7.

Relative density: 2.64 – 2.69.

Transparency: translucent, opaque.

Fluorescence: green and reddish.

Chemical composition: Silica (silicon dioxide, SiO2).

Color: Transparent, with color variations depending on the elements present in the chemical formula. Green, golden brown, iridescent.

Fracture: conical, splintered.

 

RUBY

The word “Ruby” comes from Latin and means “red”. Technically called Ruby Coridon, after diamond it is the mineral with the greatest hardness. 

CHARACTERISTICS:

Composition – Aluminum Trioxide.

Hardness – 9

Relative density – 3.9 – 4.1

Shine – Vitreous to adamantine shine

Color – Varied color (colorless, white, gray, red, yellow, green).

Sign: Aries, Sagittarius, Leo, Capricorn and Scorpio

It can be found in Brazil, Burma, Thailand, Sri Lanka, Tanzania, India, Afghanistan, Australia and Cambodia.

 

SELENITE

Chemically it is composed of hydrated calcium sulfate. It is formed by the evaporation of salt water in lakes or inland seas. Being intimately connected with water, therefore, it is perfect for working with the emotional body.

CHARACTERISTICS:

Hardness: 1.5 – 2

Color: Colorless, White, Gray. Translucent, transparent.

Where to find: Brazil, Mexico, USA, Siberia, Greece, Australia.

 

SODALITE

Discovered in 1806 in Greenland, Sodalite did not become na rangery ornamental stone until 1891 when vast deposits of good quality material were discovered in Canada. It was then called Princess Blue in honor of Princess Patricia, who visited the Canadian warehouse rangery after its rangery and who chose Sodalita to decorate the interior of Marlborough House in England. Deposits are located in Brazil (Bahia), Greenland, India, Canada, Namibia, Russia.

 

CHARACTERISTICS:

Group: Feldspathoid

Mohs hardness: 5.5 – 6.

Relative density: 2.14 – 2.40.

Fluorescence: Strong, range.

Chemical composition: Na8 (Ci2Al5Si6O2 4) Sodium Silicate – aluminum with chlorine.

Color: Blue grey.

Fracture: Concoid

 

BLACK TURMALINE

Black Tourmaline has the ability to capture energy from the atmosphere and emit particles known as Ions, which is why it is a powerful cleansing stone for environments. Its power is so great that it makes it even capable of neutralizing the harmful effects of cellphone radiation. 

Also known as Schorl Tourmaline, Black Tourmaline is found in a prism shape in nature. It belongs to the Silicate mineral group, in relation to its chemical composition. In addition to the black color, it is also known for its rarer blue, green and even transparent variations. Tourmaline is a crystalline mineral composed of elements such as potassium, aluminum, iron, sodium, magnesium and lithium. The amount of each of these elements will define the appearance and final color of the yolk, in the case of Black Tourmaline, it is rich in sodium.