Grape agate - Mamuju, Sulawesi, Indonesia
Botryoidal quartz, sparkling in the light, commonly known as...
Botryoidal quartz, sparkling in the light, commonly known as...
Botryoidal quartz, commonly known as "cluster chalcedony",...
Superb, highly original thumbnail of bicolor botryoidal quartz...
Superb bicolor botryoidal quartz thumbnail with a few green...
Botryoidal quartz, commonly called "cluster chalcedony", with...
Fine slab of green botryoidal chalcedony with celadonite...
Quartz of the Indonesian amethyst variety known as 4,5 x 3,9 x...
Quartz of the amethyst variety from Indonesia, known...
Quartz of the Indonesian amethyst variety, known commercially...
Quartz of the amethyst variety from Indonesia, known...
Botryoidal chalcedony with a green color due to celadonite...
Botryoidal quartz, commonly known as "cluster chalcedony",...
Quartz of the amethyst variety from Indonesia, known...
Epitaxial hematite and rutile. Part of a discovery of a few...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Several spheres of slightly bluish lussatite on gangue.9 x 6 x...
Polished slice of polyhedral agate, which can be appreciated...
Polished slice of polyhedral agate, which can be appreciated...
Polished slice of polyhedral agate, which can be appreciated...
Polished slice of polyhedral agate, which can be appreciated...
Polished slice of polyhedral agate, which can be appreciated...
Polished slice of polyhedral agate, which can be appreciated...
Floating translucent gypsum crystal from the Gard region. 10...
Floating, translucent group of gypsum crystals from the Gard...
Set of floating, translucent gypsum crystals from the Gard...
Honey-colored spearhead crystallized gypsum, translucent in...
Floating translucent gypsum crystal from the Gard region....