Friends of Mineralogy
New Jersey
Friends of Mineralogy NJ Chapter

A Geology Club for All

Regarless of Your Knowledge, from Newbie to Professional Geologist, You are Welcome

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Coming up

Upcoming events

Meetings, field trips, and shows on the horizon.

About

Who we are

“Friends of Mineralogy of New Jersey is the NJ Chapter of the national Friends of Mineralogy organization whose objective is to promote, support, protect, and expand the collecting of mineral specimens, while furthering the recognition of the scientific, economic, and aesthetic value of minerals and mineral collecting.”

Club Meetings

Monthly meetings are held on the third Tuesday of the month at 7pm at 37 Vanderburg in Marlboro.

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Field Trips

Field trips are for club members only. We go on several trips a year in surrounding states. Be sure to join so you don't miss out

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Rock Shows

There are a number of rock shows in the area. Check back regularly to stay up to date with upcoming shows

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From the club

Recent articles

Looking back

Past events

Nov 7, 2026

Hewitt Gem Mine

Join us for a day of collecting at the Hewitt Gem Mine in Haddam, Connecticut. This privately owned fee-dig site is known for a variety of pegmatite minerals, including beryl, tourmaline, garnet, quartz, feldspar, mica, torbernite, fluorite, and more.

Meetup

Hewitt Gem Mine Parking Area
202 Turkey Hill Road
Haddam, CT 06424

Meet at 8:40 AM SHARP

The trip will begin no later than 15 minutes after the meetup time. Look for a small roadside sign marked “HEWITT.”

Collecting Hours: 9:00 AM–4:00 PM

Attendance & Age Requirements

Limited to 35 people maximum. Groups of 2–3 people are preferred.

Minimum age: 8 years old
All attendees age 17 and under must remain under full parental supervision.

Fees

Standard Dig: $30 per person
With Power Tools/Drills: $40 per person
Children age 10 and under: FREE

A cooked lunch will be available for a requested $10 per person contribution. Please bring a separate $10 bill for lunch.

What to Bring

Bring plenty of water, food and drinks, along with your collecting gear. Recommended equipment includes:

  • Rock hammer and chisels
  • Sledgehammer
  • Pry bars
  • Shovel
  • Rock pick
  • Buckets
  • Newspaper/wrapping material
  • Backpack
  • Jackhammer or saw, if desired

LONG PANTS REQUIRED — NO SHORTS

Safety

Proper safety gear is required on all trips, including safety glasses, sturdy footwear and gloves.

Hard hats are not required but are strongly recommended for anyone using equipment such as jackhammers or saws.

Additional Information

There is plenty of parking at the site, so carpooling is not necessary.

The property is now under new ownership, and the new owners are continuing to allow clubs to visit and collect.

All attendees are required to sign a Hold Harmless Agreement.

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Oct 31, 2026

Ultraviolation

ULTRAVIOLATION is the ULTIMATE annual show for the fluorescent mineral enthusiast, whether a novice or serious collector. The show features many of the world’s premier fluorescent mineral COLLECTORS AND DEALERS who strive each year to bring the biggest, brightest and best fluorescent minerals to satisfy the insatiable cravings of the fluorescent collector. ULTRAVIOLATION highlights fluorescent minerals exclusively and is the next best thing to night collecting. Free admission and a fluorescent mineral specimen for each junior mineralogist 12 years and younger when accompanied by an adult.

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