calcite
Worth a lookShows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.6%return rate — above 6% kills the launch gate
Review moat
Incredible82.48avg incumbent reviews — the moat a new listing must climb
Avg price
Great$67.94avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good4.6%search→purchase rate — share of searches ending in a sale
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Brand share
Good72%top-5 brand share — brands hold most of the demand
Growth
Okay+11.6%90-day search growth — must beat 0% to launch
Market size
Okay$120K$120K/yr · 38K searches
Price range
Bad$5.57–$685.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.Brands
24 rising
Sellers
46
Top-5 brand share
72%
Open market
23%
- Bartra Product25%
- Generic22%
- MINERALUNIVERSE11%
- 3M9%
- Abundant Flow Water6%
- FOMNKKN5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 31 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Natural Calcite Crystal from Peru - Authentic Energy Stone Specimen Formed with Several Crystals | Cluster Druse or Twin Shapes | for Collection Decoration or Gifting (2 to 3 Ounce)
Bartra Product$12.003.8★12 rev
Calcite pH Balance Mineral Media 50 lb Natural Calcium Carbonate (CaCO) Water Treatment Media for Neutralizer Tanks Commercial & Institutional Use
Generic$109.674.5★5 rev
MINERALUNIVERSE 1/2 LB Blue Calcite Rough Stones - Bulk Blue Calcite Crystal - Raw Natural Stones & Crystals - Fountain Rocks for Tumbling Polishing Wire Wrapping Reiki Chakra Crystal Healing
MINERALUNIVERSE$11.054.3★26 rev
Natural Calcite Crystal from Peru - Authentic Energy Stone Specimen Formed with Several Crystals | Cluster Druse or Twin Shapes | for Collection Decoration or Gifting (3 to 4 Ounce)
Bartra Product$15.753.8★12 rev
Aqua-Pure C-050P Calcium Carbonate Media
3M$91.834.5★118 rev
Newest
by launch date
Calcite Calcium Carbonate Filter Media for PH Correction (0.5 Cu. Ft.)
Provizio Supply$99.520 rev
VICAL 1000 Calcite Media 1640 Mesh NSF/ANSI 60 Certified Calcium Carbonate Neutralizer Media for Acid Neutralizer Filters & Well Water Treatment Made in USA 0.5 Cubic Foot / 50 lb
Generic$108.591 rev
Large 1.25-2.0 Natural Orange Calcite Raw Crystals Stones for Meditation Chakra Reiki Crystal Grid Energy Work Wire Wrapping Tumbling & Spiritual Home Decor
BOMBAY CRYSTALS EXPORT$6.2112 rev
Calcite Filter Media - Acid Neutralizer for Low pH or Acidic Condensate Water - Calcium Carbonate for Water Filtration (10lbs.)
iFiVa Filtration$42.880 rev
Fine Ground Limestone Powder 50 lb All-Natural Calcium Carbonate for Lawns Gardens Chicken Coops Odor Control Soil pH and Agriculture Soft White Lime Rock Dust
CountryMax$49.43121 rev
Trending
90-day click momentumLarge 1.25-2.0 Natural Orange Calcite Raw Crystals Stones for Meditation Chakra Reiki Crystal Grid Energy Work Wire Wrapping Tumbling & Spiritual Home Decor
BOMBAY CRYSTALS EXPORT$6.214.8★
Calcite Calcium Carbonate Filter Media for PH Correction (0.5 Cu. Ft.)
Provizio Supply$99.520.0★
Fine Ground Limestone Powder 50 lb All-Natural Calcium Carbonate for Lawns Gardens Chicken Coops Odor Control Soil pH and Agriculture Soft White Lime Rock Dust
CountryMax$49.434.8★
VICAL 1000 Calcite Media 1640 Mesh NSF/ANSI 60 Certified Calcium Carbonate Neutralizer Media for Acid Neutralizer Filters & Well Water Treatment Made in USA 0.5 Cubic Foot / 50 lb
Generic$108.594.0★
Calcite Media (Calcium Carbonate Mineral) pH Correction Media 50 lbs
IPW Industries Inc$100.724.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +11.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Beautiful Piece and Beautiful Cut, Great Price, Super Fast Shipping and Excellent Service - Thank You”
“This was exactly as advertised”
“Great value”
“The colors are beautiful”
“The sizing is correct”
“Beneficial addition to your planting needs”
“Eliminated the smell”
“For a natural stone it feels quite durable”
“Worked fine, is enough for two refills”
“it's actually very fine material”
What buyers complain about
“above the rim or valve head won't fit on”
“Cheaper available elsewhere”
“Not really optical quality”
“Poor instruction but”
“ord none had any blue”
“Not compatible with my system”
“What was shown online vs what was sent was completly different”
“I can not use it in my water treatment”
“because it's poorly designed”
“A Design Flaw that caused a HUGH Installation problem”