We offer high-quality natural minerals, professional consulting, and experience to efficiently serve our customers on the demand for bentonite clay and its multiple uses.

Offering Bentonite At A Competitive Price

Fix your dried pond with Bentonite clay

The most effective, low cost and environmentally safe solution for leaking ponds and lakes.

Dried Pond


Pond fixed with Sodium Bentonite


Please contact and request a quote for us to apply the bentonite clay and line your pond.


For those who want a good pond seal to solve and repair the base of their water retention stock tanks, natural sodium bentonite clay is the best alternative. Clay prevents water from escaping or flowing, while at the same time, it is harmless to fish, cattle, livestock, and plants.


  • Ranch Owners
  • Farmers
  • Homeowners
  • Businesses
  • Golf courses
  • Residential Communities
  • Municipalities
  • State governments
  • Etc.

Bentonite products & solutions

Bentonite is an absorbent clay consisting mostly of Montmorillonite that works exceptionally well as a pond line

Pond Sealing

Swelling on contact with water makes bentonite useful as a liner sealant for your pond and lake. It provides a self-sealing low-permeability barrier.

Cat Litter

Bentonite is used in many pet care products such as cat litter, by absorbing the scent, urine, and covering the droppings.

Bentonite clay

Sodium Bentonite

When wet, Sodium bentonite expands by absorbing several times its dry mass in water.

Fix Ponds & Lakes

We offer a complete service to apply our minerals. 
We can dig, reshape, treat, and seal your old pond. Or, if needed, build you a brand new one.

Water Treatment Clay & Formulated Blends

Wastewater and water treatment special formulated blends with bentonite clay and other minerals and ingredients.

Our Services

Fix, Design & Build Ponds

We are here to help you in more ways than one, we can supply you the bentonite mineral liner product, we can also design, construct, and develop a new pond. LoneStar sodium bentonite pond sealant is the best solution for leaks in waterbeds.
Using this approach has been determined as the best way to seal ponds, lakes, and water tanks
FREE ESTIMATES quoted over the phone.

About Lonestar Minerals

We offer a full product line of our mined quality bentonite minerals and professional services.


It all starts with mining, milling, packaging, and logistics to ensure our customers’ on-time deliveries.


Only the highest quality clays are selected, assuring a super product for constructing and treating a pond or lake.

Sodium Bentonite Plant

Core Values


In all our operations, we are dedicated to excellence in terms of quality, service and continuous improvement.


We care for our customers and employees; we aim to help them grow and be successful.


Our company follows the highest level of integrity. We operate by laws, legislation, and policies.

Why are people buying from us









Our Clients are saying

“My business is simple. I design ponds. Lonestar has been my main supplier of bentonite for the past 7 years. They are honest, hard-working, and have never let me nor any of my clients down.


With pleasure, I sure do recommend them!”

Alex Hankins


“Lonestar Bentonite declares to have a high-performance product. The product seems to work as advertised. We’re very pleased with the results so far. Every day, it seems to be better. I highly recommend this product, as I tried other options on the market and didn’t work as well as this one.”

Pat Talamas



Serving Texas, Oklahoma, Louisiana, Arkansas, New Mexico, and other states direct from any of our warehouses in Texas and serving Central and Northern states direct from Wyoming warehouse.

Helpful Tools & Recommendations For Bentonite applications

* How to determinate how much Bentonite is needed to seal my pond?

Depending on the type of soil on your pond and the size of the pond is how much sodium bentonite clay we can recommend to use.


The following table will help you decide the required amount of pond sealant needed in relation to the square foot for the different soil conditions.


This table is based on Lonestar Minerals’ high-quality bentonite mix mesh powder for ponds.


Powder mix meshes granular Pond sealant:
  • Soil condition:                  Amount of bentonite clay:
  • Rock or gravel: 3.0 to 3.5 lbs. of bentonite per square foot area.
  • Clean Sand: 2.5 to 3.5 lbs. of bentonite per square foot area.
  • Silty Sand: 2.0 to 2.5 lbs. of bentonite per square foot area.
  • Sandi Silt 20% Clay Min: 1.5 to 2.0 lbs. of bentonite per square foot area.
  • Clay soil: 1.0 to 1.5 lbs. of bentonite per square foot area.

* How do I calculate the area of my pond?

Pond Size Area Calculating Formula:


Step 1.- Multiply your depth of deepest point by two, and the resulting number needs to be added to the length dimension of the pond.


Then repeat this process, multiply your depth of deepest point by two, and the resulting number needs to be added to the width dimension of the pond.


(Length + Depth x 2= “X”) and (Width + Depth x 2= “Y”)




Step 2.-Then, multiply the resulting number from both equations, from the above formula.


(L X W = Total Pond Area)


*This formula gives a reasonable approximation of the size of your pond.


To estimate the area of a Circular Pond:
Follow this process below!


Step 1.- You will need to measure the circumference of the pond. Once you have acquired those measurements, you will divide the circumference by two times pi. This resulting number is the radius of the pond.


Pond Circumference / (2 X Pi) = Pond Radius


Step 2.- Once you have solved for your radius. You will square the radius and multiply it by pi.


(Radius^2) X Pi = Pond Area


Feel free to contact us for any questions or concerns, our experts through our contact page, or give us a call. We can calculate the square footage of the pond you!
(To calculate your pond square footage size area, we need the longest pond length, longest pond width, and deepest pond depth).

* Why use our Pond sealant mix mesh granular and powder particles sizes blend and not the granular or chips?

We offer a unique milled clay product for pond sealant that is a mix mesh powder granular product from fine 200 mesh powder to a 40-mesh mix.


This pond sealant mix meshes granular/powder is by far the best product for this application.


If you were to use a granular bigger particle size chips, you would need twice or three times as much to perform as good.
(Please see the picture of our product so you can have a better idea of our work) to give you an idea, if you hold our product in your hand, it will feel like you were holding beach sand.

* Can you buy our bentonite pond liner by the full truckload, less than a truckload, by the pallet, bag, or by the ton?

We offer our products delivered at any of our warehouses. (Inventory always available)


The main warehouse is in Laredo, TX. and Wyoming, We also have a warehouse in Eagle Pass and Bulverde, TX. (11 miles North of San Antonio TX.)
We can coordinate logistics delivery nationwide at a very competitive rate.


We can ship directly from Wyoming mines depending on your location and the logistics cost.


We offer a delivery service, and we can coordinate delivery from LTL –  less than a full truckload order to an FTL full truckload order.
(Please call us for a landed price quote).


Our headquarters office is in San Antonio, TX.

* Information on unloading your order from truck, equipment needed and pallets and super sacks weight?

Please consider that you’ll need equipment to unload 3,000 lbs super sacks or 2,500 lbs pallet from a flatbed truck.


These super sacks have straps on top to grab with your tractor, excavator, front loader, bobcat, or forklift. and you can unload from the eighteen-wheeler flatbed truck
Must of the time, the super sacks do not have wooden pallets underneath; if you require pallets, please call and request on your order (cost per pallet will be added to your order).


All our super sacks come with a very efficient discharge valve. The location of the discharge valve is underneath the super sack, for effortless pouring. To efficiently release the pond sealant, you must pick up the bag and untie the valve to start pouring the liner on top of your soil.

* Pond jobs and controction Services we offer beside supplying our mineral sodium bentonite to fix your pond?

Besides offering our bentonite clay to fix and repair your pond to seal your water leaks and seepage, we also offer the service to apply our mineral and treat your soil.


We design, reshape, or build new lakes and ponds.

What is Bentonite and its History?

Bentonite is volcanic ash from million or thousand of years old. It mainly consists of mineral montmorillonite and lesser amounts of other minerals such as pyrite, feldspar, quartz, and calcite.


An American geologist identified swelling water clay in and around rocky formation near Fort Benton and given the name “mineral soap.”


During the 1920s, when researchers called bentonite clay and the important Properties of montmorillonite Bentonite.


Mineral with a density between 2.2 and 2.8 g/cm3 depending upon its quality and the presence of other minerals. When wet, the volume expands almost 13 times more than when it is dry and its dry mass in water (depending on the quality of the bentonite).

bentonite mine

This property of bentonite clay is favorable for filling small and large voids or spaces. Pond sealer bentonite acts as a barrier between the water and the surface, preventing seepage of water, which is an essential requirement while constructing any water body, like ponds, dams, wells, and lagoons.

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