What are the opening hours?

Wednesday 12pm - 6pm Thursday 12pm - 6pm Friday 12pm - 6pm Saturday 12pm - 6pm Sunday 12pm - 6pm

Third Rock Emporium

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United States
East Greenwich, RI
Third Rock Emporium

Rock Shop of Earthly delights from jewelry, crystals, minerals, fossils, chakra, reiki & feng shui s We are a Rock Shop and more

Third Rock Emporium is a Rock Shop offering a variety, perhaps a plethora and possibly even a cornucopia of Earthly Delights including rocks, minerals, fossils, Handmade Native American Jewelry, Handcrafted Local Artisan Jewelry,Gemstones, Wood/Stone Carvings, Polished Stones, Crystals, Spheres, Pyramids, Chakra, Reiki & Feng Shui Supplies and much much more. After thirty years of rock peddling fr

om town to town at fairs, festivals and flea markets as Mark's Rocks, I have decided that rocks are way too heavy to carry and that I needed a permanent Rock Shop location. Following a three month search and much consideration I'm thrilled to say our Rock Shop is located at 75 Main Street East Greenwich Rhode Island, next to The Greenwich Odeum and across from the municipal parking lot. We also carry an assortment of antiques and oddities so please stop in for a unique shopping experience that we hope you will enjoy.

08/22/2026

Here’s some Fluorite, Pink Lemurian Quartz and Laguna Lace Agate for your Saturday viewing. All are looking for forever homes!

I’ll be open this weekend from noon to six! Swing on by if you please!

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08/19/2026

Tomorrow is the food stroll with free samples being offered by many restaurants on Main Street!

The Third Rock Fossils will be crawling out of their cave and hitting the wall around five! We hope to see you here!

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08/16/2026

I’m just gonna sit and stare at this a bit this morning.

We’ll be open 12 - 6 today.

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08/15/2026

Here’s a couple clusters recently added, Golden Healer Quartz and Dark Blue Kyanite from Colombia and Brazil, respectively. I’ve got lots more crystals hitting the shelves.

It’s going to be a beautiful weekend on Main Street! Come check it out! Our doors will be wide open and the music playing!

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08/13/2026

Box 1 partial contents included golden healers, kyanite, assorted polished stones and points. Also (not shown (stay tuned)) big ammonites, labradorite and giant quartz points in stands with tourmaline. Things’ll start hitting the shelves today!

I’ll be open Wednesday through Sunday from noon to six. I hear the nice air is moving in. Come on by!

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08/12/2026

I’m excited! Box 1 has arrived. Onto unboxing!

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08/07/2026

OMG! Chip is twitterpated! 🥰

I hope someone looks at you the way Chip looks at Dr. Fauci!

I’ll be here noon to six through Sunday and sending out much love in the meantime!

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08/06/2026

I worked in Microbiology for 35 years before opening Third Rock Emporium.

And yes, it’s time to bring back my hero’s bobble head! Thank you for everything Dr. Fauci!

I’ll be here noon to six with the AC on and keeping cool!

08/01/2026

Happy August!

It’s looking like a beautiful weekend to visit Main Street! Have you been this summer?

We’ll be open this weekend from noon to six. Come on by!

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07/30/2026

Random shot of the day for no particular reason. Did I nail it?

I’ll be here rocking Wednesday through Sunday from noon to six! Rock On!

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Address

75 Main Street
East Greenwich, RI
02818

Opening Hours

Wednesday	12pm - 6pm
Thursday	12pm - 6pm
Friday	12pm - 6pm
Saturday	12pm - 6pm
Sunday	12pm - 6pm

Website

https://www.thirdrockemporium.com/

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