Calcite, Stilbite Subgroup, Quartz (Var: Smoky Quartz)

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Here we have a 2 1/4 x 2 1/4 inch specimen of Stilbite on Calcite on Quartz from Montclair, New Jersey. Ex. Robert Drift collection. Specimen #92 of the Eric Stanchich New Jersey Mineral collection.

Stilbite Subgroup, Calcite, Heulandite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

3.8 cm stilbite sphere with micro calcite and heulandite crystals formerly in the Earl Calvert collection.

© Frank A. Imbriacco III

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite, 9cm by 9cm. Joseph Polityka collection from the Neal Wintringham collection.

© 1

Stilbite-Ca

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

3.9 x 2.4 x 1.3 cm. A perfect bowtie of orange-caramel colored stilbite from New Jersey - rare on the market now and a very pretty example of this in a small miniature size. Ex. Jaime Bird Collection.

© Rob Lavinsky & irocks.com

Prehnite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Prehnite plate on basalt matrix. Ex Seaman museum collection.

© BDP

Scolecite, Analcime

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Scolecite with analcime and calcite. 4 cm.

© BDP

Heulandite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Heulandite on altered basalt matrix. minor corroded stilbite. 8.5 cm.

© BDP

Pectolite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Pectolite hemispheres on quartz and calcite. minor babingtonite. 10.5 cm.

© BDP

Basalt, Opal-AN (Var: Hyalite)

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange Mountain Basalt with Hyalite veins White, botryoidal, Opal/Hyalite veins on Orange Mountain Basalt from the first Watchung Mountain in New Jersey, composed mostly of calcic plagioclase and clinopyroxene (augite and pigeonite). Opal occurs in small amounts in New Jersey basalt often as a thin white coating. It has been recorded from ...

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite on altered basalt. This is the " blood red " stilbite the quarry is known for, minor heulandite. 5 cm.

© BDP

Quartz

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Quartz var. rock crystal group 7.5 cm. collected by Dr. Wallace Goold Levison April 22, 1892.

© BDP

Quartz, Calcite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Quartz var. amethyst with calcite. 6 cm.

© BDP

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite spheres on altered basalt matrix 6 cm.

© BDP

Heulandite Subgroup, Calcite, Quartz

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange Heulandite with Calcite on Quartz from Montclair, New Jersey. There is also the remnant of an orange Stilbite on the bottom. Ex. Steve Smarsh collection. Bryan Davis collection and photo.

© Bryan Davis 2019

Stilbite Subgroup, Calcite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Red-orange Stilbite sprays with colorless, scalenohedral Calcite in the vugs.

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange stilbite crystals on matrix. JSS specimen and photo.

© 2026JSS

Old Postcard

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

View of the quarry at Upper Montclair. Postmarked 1907.

© BDP

Calcite, Stilbite Subgroup, Quartz (Var: Smoky Quartz)

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Here we have a 2 1/4 x 2 1/4 inch specimen of Stilbite on Calcite on Quartz from Montclair, New Jersey. Ex. Robert Drift collection. Specimen #92 of the Eric Stanchich New Jersey Mineral collection.

Stilbite Subgroup, Calcite, Heulandite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

3.8 cm stilbite sphere with micro calcite and heulandite crystals formerly in the Earl Calvert collection.

© Frank A. Imbriacco III

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite, 9cm by 9cm. Joseph Polityka collection from the Neal Wintringham collection.

© 1

Scolecite, Analcime

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Scolecite with analcime and calcite. 4 cm.

© BDP

Stilbite-Ca

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

3.9 x 2.4 x 1.3 cm. A perfect bowtie of orange-caramel colored stilbite from New Jersey - rare on the market now and a very pretty example of this in a small miniature size. Ex. Jaime Bird Collection.

© Rob Lavinsky & irocks.com

Prehnite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Prehnite plate on basalt matrix. Ex Seaman museum collection.

© BDP

Heulandite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Heulandite on altered basalt matrix. minor corroded stilbite. 8.5 cm.

© BDP

Pectolite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Pectolite hemispheres on quartz and calcite. minor babingtonite. 10.5 cm.

© BDP

Basalt, Opal-AN (Var: Hyalite)

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange Mountain Basalt with Hyalite veins White, botryoidal, Opal/Hyalite veins on Orange Mountain Basalt from the first Watchung Mountain in New Jersey, composed mostly of calcic plagioclase and clinopyroxene (augite and pigeonite). Opal occurs in small amounts in New Jersey basalt often as a thin white coating. It has been recorded from ...

Quartz, Calcite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Quartz var. amethyst with calcite. 6 cm.

© BDP

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite on altered basalt. This is the " blood red " stilbite the quarry is known for, minor heulandite. 5 cm.

© BDP

Quartz

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Quartz var. rock crystal group 7.5 cm. collected by Dr. Wallace Goold Levison April 22, 1892.

© BDP

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Stilbite spheres on altered basalt matrix 6 cm.

© BDP

Heulandite Subgroup, Calcite, Quartz

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange Heulandite with Calcite on Quartz from Montclair, New Jersey. There is also the remnant of an orange Stilbite on the bottom. Ex. Steve Smarsh collection. Bryan Davis collection and photo.

© Bryan Davis 2019

Stilbite Subgroup, Calcite

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Red-orange Stilbite sprays with colorless, scalenohedral Calcite in the vugs.

Stilbite Subgroup

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

Orange stilbite crystals on matrix. JSS specimen and photo.

© 2026JSS

Old Postcard

McDowell's Quarry, Upper Montclair, Montclair, Essex County, New Jersey, USA

View of the quarry at Upper Montclair. Postmarked 1907.

© BDP