Natural Pen Pearls for Sale

Pen pearls or pinna pearls for sale.

Nacreous Pen Pearls Color: Black with Silver overtones on necklace - Black with green overtones on earrings Shape: Baroque Weight: 2.81 carats Total Size: 6x6mm & 5x4mm & 5x4mm Gemstone: Tanzanite More Photos & Video Price: $719

Pen Pearl Color: silver gray lustrous Shape: Baroque Weight: 39.50 carats Size: 33 x 24.5 x 14mm More Photos Price: $3,999 Reserved

Pen Pearl Color: Dark, dark brown, almost black Shape: Drop Weight: 135.55 carats - total Sizes: 17x12.5mm, 17x10mm, 16x10.5mm, 15x11mm, 14.5x9.5mm, 13.5x10mm, 14x10.5mm, 15x10.5mm, 15.5x10mm, 14x10mm, 13.5x9mm, 13.5x8.5mm, 13x10mm, 12.5x9mm, 14.4x8mm, 11.5x8mm More Photos Price: $6,778

Pen Pearl Color: Dark Brown Shape: Round Weight: 0.20 carats Size: 3 x 3mm More Photos Price: $45

Pen Pearl Color: Dark Brown Shape: Drop Weight: 1.30 carats Size: 6.5 x 6 x 6mm More Photos Price: $99 SOLD!

Pen Pearl Color: Brown Shape: Drop Weight: 2.10 carats Size: 8 x 6.5 x 6.5mm More Photos Price: $141 SOLD!

Pen Pearl Color: Dark Brown Shape: Round & Off Round Weight: 2.65 carats - total Size: 7 x 5.5mm & 6 x 6mm More Photos Price: $169

Pinnidae is a family of large saltwater clams sometimes known as pen shells. They are marine bivalve molluscs in the order Pterioida.

The shells are fragile and have a long and triangular shape, and in life they are anchored in sediment using a byssus. The shells have a thin inner layer of nacre in the part of the shell which is near the umbos (the pointed end.)

The family Pinnidae includes the fan shell, Atrina fragilis, and Pinna nobilis, the source of sea silk. Some species are also fished for their food value.

The Pinnidae have considerable economic importance in many parts of the world. They produce pearls of varying colors. In the Mediterranean area, material made from the holdfast or byssus of Pinna nobilis Linné has been utilized in the manufacture of clothing for many centuries: gloves, shawls, stockings and cloaks. Apparel made from this material has an attractive golden hue and these items were greatly valued by the ancients. Today, pinnidae are eaten in Japan, Polynesia, in several other Indo-Pacific island groups, and on the west coast of Mexico, In Polynesia, the valves of Atrina vexillum are carved to form decorative articles, and entire valves of larger specimens are sometimes used as plates.

Understanding Pen Pearls

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