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This product is meant for a classroom/laboratory setting, we do not have information on this product in relation to the pH of a fish tank.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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EISCO 12PK Raw Gray Limestone, Sedimentary Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack

Product ID: 208724700

📏Approx. 1-inch uniform size

🧪Calcium carbonate reactive in acid

🪨12 handpicked limestone specimens

S$52

Duties & taxes included

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Description

🧑‍🔬 Elevate your science class with rocks that rock the curriculum!

UNIFORM SIZE FOR GROUP STUDY - Consistent ~1-inch samples make comparison and classification exercises seamless and effective.
GEOLOGIST SELECTED AUTHENTICITY - Each specimen is handpicked and processed by a professional geologist, ensuring genuine and educationally valuable samples.
INDIVIDUALLY PACKAGED LABELED - Each rock comes barcoded and bagged for easy identification, storage, and classroom organization.
PERFECT CLASSROOM CHEMISTRY DEMO - Watch calcium carbonate effervesce in acid—ideal for hands-on learning and engaging science experiments.
LOCALLY PROCESSED WITH GLOBAL SOURCING - Sourced worldwide and carefully processed in Victor, NY, supporting quality and traceability.

This set of 12 raw gray limestone specimens, each about 1 inch in size, is hand-selected by geologists to showcase authentic sedimentary rock features. Perfect for classroom use, these calcium carbonate-rich samples demonstrate acid reactivity and support identification exercises. Individually packaged and labeled for easy handling, they bring a professional touch to geology education.

Specifications

ASIN	B083G2H1HL
Best Sellers Rank	#361,957 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #584 in Science Classroom Specimens
Brand Name	EISCO
Customer Reviews	4.0 4.0 out of 5 stars (75)
Item Dimensions	3 x 3 x 3 inches
Item Weight	3.2 ounces
Manufacturer	Eisco
Manufacturer Part Number	HESNG0033PARENT
Material Type	gray limestone
Model Number	HESNG0033PARENT
Number of Items	12
Set Name	Gray Limestone Specimen Set
Size	1 inch
Theme	Geology
Unit Count	12 Count

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